Understanding replay systems in live sports broadcasting.
Every disputed goal, last-second three-pointer, and photo-finish sprint in modern sports broadcast lives or dies on the replay system. This guide covers the platforms that dominate the market (EVS XT, Evertz DreamCatcher, NewTek 3Play), how they integrate with the production switcher, what the replay operator actually does in the booth, and how CBA deploys them at GCC events from Saudi Pro League matches to the Esports World Cup.
- 5-8 sec
- 8-12 ISOs
- Slow-mo HDR
- IP-native
The 5-second window that defines the broadcast.
Live sports broadcast hinges on what happens between the moment of an event and the replay reaching air. A disputed goal, a clutch three-pointer, a photo-finish sprint, all of these need to come back on screen within 5 to 8 seconds with the right angle, the right speed, and the right context. The replay system is the engine that makes that possible.
Modern replay is not a slow-motion deck. It is a multi-camera ingest, mark-and-clip workflow, slow-motion render engine, and broadcast playout system, all running in real time alongside the live production. Eight to twelve cameras typically feed isolated (ISO) recordings into the replay system. The replay operator marks moments as they happen, builds the replay sequence, and triggers playback to the production switcher within the decision window.
For the audience, this is invisible craft. Done well, it feels like the broadcast just knows when to come back to the moment. Done poorly, the replay arrives 30 seconds late and the audience has already moved on.
The industry standard for live sports.
EVS XT is the most-deployed replay platform in international sports broadcast. The XT-VIA generation handles 12 channels of HD or 6 channels of 4K HDR with super-slow-motion (3x to 6x speed) and ultra-slow-motion (up to 12x). Used by every major football broadcaster, every Formula 1 race, every Olympic Games since 1996.
The XT model uses a record-while-playing architecture: each channel records continuously into shared storage while operators mark and play clips. The marking is the operator skill: anticipating the moment, marking the in-point, marking the out-point, picking the angle, picking the speed, ready to go to air on the director call.
For UAE and Saudi sports broadcasts, EVS XT is the standard at major venues. Saudi Pro League uses XT for league broadcasts. The Esports World Cup used XT-VIA for replay across the production. CBA integrates XT replay output directly into our vision mixing system as a dedicated channel that the director can cut to within frames.
IP-native challenger gaining ground.
Evertz DreamCatcher is the IP-native challenger to EVS, designed from the ground up for SMPTE 2110 facility integration. Same record-while-playing architecture, same super-slow-motion capability, but built for IP broadcast plants rather than SDI baseband.
For new facility builds (Saudi Vision 2030 broadcast infrastructure, new Dubai TV studios), DreamCatcher is increasingly the choice because it integrates cleanly with the SMPTE 2110 fabric. For retrofit deployments where SDI infrastructure exists, EVS still wins on operational continuity. CBA works with both depending on the partner facility.
The mid-tier and esports option.
NewTek 3Play (now part of Vizrt) is a more compact replay system than EVS or DreamCatcher. Up to 8 channels, integrated with the TriCaster production switcher line, designed for productions where the full EVS workflow is overkill but real instant-replay capability is mandatory.
For esports tournaments specifically, 3Play is common because the production scale fits: 6 to 8 ISO cameras, replay operator integrated with the technical director, fast cuts to game-engine replay alongside camera replay. The Esports World Cup used a hybrid: EVS XT for the main competition feeds, 3Play for secondary stages and behind-the-scenes content.
3Play also fits mid-tier corporate event production where a sports-style replay layer adds production value (panel discussions with audience reactions, awards ceremonies with key moment replays). The cost-benefit makes sense at scales where EVS does not.
The most under-credited role in the broadcast.
The replay operator (RO) is the person who makes the replay system worth the cost. Equipment without skill produces late replays of the wrong angle. Skill plus equipment produces the moments that define the broadcast.
What the RO actually does. Watches every camera feed simultaneously through a multi-viewer monitor wall. Anticipates the moment, marking in-points before the play resolves so the clip is ready when the director calls. Builds the replay sequence: which angle first, which angle second, which speed, with or without graphics. Triggers playback on the director call within the decision window. Stays calm under pressure: a missed replay during a tournament-deciding moment is unrecoverable.
For CBA productions, we deploy ROs experienced on the specific platform (EVS, DreamCatcher, or 3Play). Cross-trained ROs are a fleet asset because tournament weeks shift quickly between systems.
How replay shows up in our productions.
For the Esports World Cup, we ran EVS XT-VIA for main competition replay across three stages, with NewTek 3Play handling secondary feeds. ROs were dedicated per stage; each had multi-game expertise (Valorant, Dota 2, Street Fighter framing differs).
For Saudi Pro League outdoor broadcasts, EVS XT integrated with the OB truck production switcher. Six camera ISO feeds plus two specialty feeds (slow-motion 1000fps Phantom for impact moments, drone for tactical replays). Decision window: 5 seconds typical for VAR-style review, 8 seconds for general replay packages.
For corporate events and conference broadcasts, NewTek 3Play handles replay-style segments where appropriate (keynote moments, audience reaction packages, awards ceremonies). The setup is leaner: 4 to 6 ISO feeds, single RO, replay output as a single channel into the production switcher.
For more on replay specifically in IP-broadcast architecture, see our companion piece on the future of replay in sports. For service-level engagement, see replay service or multi-camera video production.
Questions we get asked.
What is the difference between EVS XT, Evertz DreamCatcher, and NewTek 3Play?
EVS XT is the industry standard for international sports broadcast, used at every Olympic Games since 1996 and most major football broadcasts. Evertz DreamCatcher is the IP-native challenger built for SMPTE 2110 facility integration, gaining ground in new facility builds. NewTek 3Play is the mid-tier option, compact and integrated with TriCaster production switchers, common in esports and mid-tier corporate. CBA works with all three depending on the partner facility and event scale.
How fast does a replay need to be on air after the moment?
5 to 8 seconds is the working decision window. Below 5 seconds, the replay operator is rushed and may miss context. Above 8 seconds, the audience has moved on and the moment loses impact. The replay system itself can deliver in milliseconds; the constraint is operator decision-making (which angle, which speed, which sequence) and director-call timing.
How many camera ISO feeds does a replay system need?
8 to 12 typical for a tournament-grade live broadcast. Each main camera (PTZ, fixed, beauty, crowd) feeds an isolated recording into shared replay storage continuously. The replay operator marks moments across all ISOs in real time. For mid-tier productions (corporate events, esports), 4 to 6 ISOs work; the trade-off is fewer angle options on any given moment.
What does a replay operator actually do during a live broadcast?
Four things. Watch every camera feed simultaneously through a multi-viewer monitor wall. Anticipate moments and mark in-points before plays resolve. Build the replay sequence (which angle first, second, third; which speed; with or without graphics). Trigger playback on the director call within the decision window. The skill is anticipation and composition under pressure, not just running the equipment.
Does CBA provide replay operators for live sports broadcasts?
Yes. CBA deploys replay operators experienced on EVS XT, Evertz DreamCatcher, and NewTek 3Play depending on the event partner and platform. Cross-trained ROs handle multi-event tournament weeks where the system shifts between venues. See replay service or multi-camera video production for service-level engagement.
Is the future of replay IP-native or SDI?
IP-native for new facility builds; SDI continues for retrofit deployments through the next 5 years. Saudi Vision 2030 broadcast infrastructure, new Dubai TV studios, and most major facility refreshes are choosing SMPTE 2110 IP fabrics with Evertz DreamCatcher or IP-native EVS configurations. Existing SDI plants stay on classical EVS XT for operational continuity until the next major refresh cycle.
What is the best replay system for live sports?
It depends on the scale. For premium sports broadcasting with large budgets and dedicated operators, EVS remains the industry standard. For multi-role production environments, esports, and MCR deployments, Evertz DreamCatcher offers more flexibility at a lower total cost.
Can DreamCatcher replace EVS?
In many workflows, yes. DreamCatcher handles the same core functions, ingest, replay, slow motion, and playout, while adding content management and automation. The operator interface is familiar to EVS-trained operators, making the transition straightforward.
What replay systems are used in esports?
Esports productions commonly use Evertz DreamCatcher, EVS XT, and NewTek 3Play. DreamCatcher is increasingly preferred for large tournaments due to its ease of onboarding operators and IP-native architecture.
What is SMPTE 2110 and why does it matter for replay?
SMPTE 2110 is an IP-based broadcast standard that transports video, audio, and metadata as separate streams over standard network infrastructure. Replay systems that support 2110, like DreamCatcher and EVS XT-VIA, can connect directly to IP-based production networks without SDI converters.
Every major moment in live sport, the disputed goal, the last-second three-pointer, the photo-finish sprint, depends on one thing behind the scenes: the replay system. It is the backbone of modern sports broadcasting, and the technology behind it has evolved far beyond simple slow-motion playback.
Today's replay servers handle multi-camera ingest, real-time content management, highlight packaging, and automated playout, all from a single platform. Combined with IP-based broadcast infrastructure like SMPTE 2110, these systems are transforming how live content is captured, managed, and delivered to air. In the Middle East and GCC, broadcasters and esports organisers are deploying them not just for traditional sports, but for gaming tournaments, government summits, and live entertainment.
This article breaks down how live sports replay systems work, the platforms that dominate the market, and how they are being used in the region right now.
What is a live replay system?
A live replay system captures multiple camera feeds simultaneously and stores them on high-speed servers. An operator can then instantly recall any angle, play it back at full speed or slow motion, and send it to air, all within seconds of the live moment.
But modern systems do much more than slow-motion playback. They function as complete production servers that handle ingest, content management, highlight creation, and scheduled playout. In a master control room (MCR), a single replay server can replace several standalone devices.
The operator works with a dedicated hardware controller, typically a panel with a jog wheel, T-bar, and shortcut buttons, combined with a touchscreen interface for searching, tagging, and building playlists. The entire multicam workflow runs through the replay system, from initial capture to final playout.
Evertz DreamCatcher: more than a replay machine.
The Evertz DreamCatcher has become one of the most significant replay and production server platforms in broadcast. Built on Evertz's IP-native architecture, it runs on the Live MediaCore hardware and scales from a single-operator flypack to a full MCR installation.
What sets DreamCatcher apart is its multi-role capability. A single platform handles:
Ingest and capture
Record all camera feeds simultaneously across SDI, SMPTE ST 2110, SRT, NDI, and IP streams, in formats from HD through to 4K HDR and even 8K.
Instant replay and slow motion
Frame-accurate playback with variable speed control for live sports production.
Content management
Tag, search, organise, and retrieve clips in real time, replacing standalone MAM systems in many workflows.
Live edit
Build highlight packages and quick-turnaround edits without leaving the platform.
Production playout
Schedule and automate clip playout, acting as a channel-in-a-box for MCR environments.
Video and audio mixing
Built-in mixing for production workflows.
The platform connects to third-party systems including Avid Interplay, Adobe, StorNext, and Amazon S3. Its scheduler module handles automated ingest, clipping, highlight creation, and MOS integration, making it a genuine automation tool, not just a replay server.
DreamCatcher is deployed globally by broadcasters including CNN, Fox, NBC, ESPN, DAZN, Globo, and Warner Bros. Discovery. In the Middle East, clients include Ooredoo, Sharjah TV, and Al Rayyan, and it is increasingly the platform of choice for regional sports and entertainment production.
Why DreamCatcher works for esports.
Esports production has adopted DreamCatcher at scale, and the reason is practical: the operator interface mirrors the workflow that EVS-trained operators already know.
In traditional broadcast, EVS operators spend years mastering the XT and XS series. When esports tournaments need replay operators for a three-month season, like the Esports World Cup in Riyadh, finding EVS-certified freelancers at that scale is difficult and expensive.
DreamCatcher solves this. Any operator familiar with EVS workflows can pick up a DreamCatcher controller and be productive within hours. The jog wheel, T-bar, and clip-building logic are intuitive for anyone who has worked on an EVS panel. This pick-up-and-play approach makes it ideal for esports, where production teams are assembled quickly and events run on tight timelines.
At the same time, DreamCatcher's IP-native architecture, with SMPTE 2110 and SRT support, fits the modern esports production model where signals are routed over IP networks rather than traditional SDI infrastructure.
MCR use: content management, ingest, and automation.
In master control rooms across the Middle East, DreamCatcher is being deployed as more than a replay machine. Broadcasters are using it as a combined ingest server, content management system, and automated playout engine.
A traditional MCR might require separate systems for ingest, replay, content storage, and playout scheduling. DreamCatcher consolidates these into a single platform. Its scheduler can automate the entire content pipeline: ingest live feeds, create clips based on predefined rules, build highlight packages, and play them out to air on a timed schedule.
This is particularly valuable for broadcasters covering multiple simultaneous events, a scenario common in the region during tournament seasons, religious programming, or multi-venue conference coverage. Instead of staffing separate ingest and playout operators, one DreamCatcher installation handles both, with content management sitting in between.
The integration with enterprise storage (Avid Interplay, StorNext, Amazon S3) means content flows from the live production server straight into the broadcaster's archive without manual file transfers.
EVS, Grass Valley, NewTek, Slomo.tv
DreamCatcher does not operate in a vacuum. The replay server market has several established players, each with strengths in different areas.
EVS XT and XS Series
EVS is the legacy leader in live replay. The XT series has been the standard in premium sports broadcasting for over two decades, and you will find EVS systems in virtually every major OB truck and sports venue worldwide. EVS offers unmatched reliability and the deepest pool of trained operators. The trade-off is cost, both in hardware and in the specialised operators required to run it. For large-scale, long-running broadcast operations, EVS remains the benchmark.
Grass Valley K-Frame / LDX
Grass Valley approaches replay as part of a broader production ecosystem. Their systems integrate tightly with Grass Valley switchers and camera systems. If your entire production chain is Grass Valley, the workflow is seamless. However, as a standalone replay solution, it is less commonly deployed than EVS or DreamCatcher.
NewTek 3Play
The entry point for live sports replay systems. NewTek 3Play is popular in lower-budget productions, university sports, and smaller esports events. It runs on standard PC hardware, is affordable, and has a short learning curve. The limitation is scale, 3Play handles fewer inputs and lacks the enterprise integration, IP-native architecture, and automation features of DreamCatcher or EVS.
Slomo.tv
A cost-effective alternative used in mid-tier sports production. Slomo.tv offers capable slow-motion replay with a competitive price point, but lacks the content management and MCR automation capabilities of the bigger platforms.
How we use replay systems at Creative Broadcast Agency.
At Creative Broadcast Agency, we deploy replay systems for live event streaming, esports, and entertainment production across the GCC.
During the Esports World Cup in Riyadh, our team operated replay systems across five arenas over three months of continuous production. The ability to onboard operators quickly, without months of platform-specific training, was essential at that scale.
For corporate and conference production, we use replay workflows to capture keynote presentations and panel discussions, tag key moments in real time, and deliver highlight packages to clients within hours of the event ending. This fits into our broader live HD streaming and production workflows.
Our approach is platform-agnostic. We select the replay system based on the production requirements: the number of camera inputs, the output format, the integration needs, and the operator pool available. Whether it is DreamCatcher, an EVS replay system, or a lightweight 3Play setup for a smaller event, the goal is the same, frame-accurate, reliable playback that serves the live production. For more on where replay technology is heading, see our article on the future of replay in sports and IP replay broadcasting.
Choosing the right replay system
The right system depends on your production. Quick comparison of the four main platforms:
| Feature | Evertz DreamCatcher | EVS XT/XS | NewTek 3Play | Slomo.tv |
|---|---|---|---|---|
| Best for | MCR, esports, multi-role | Premium sports broadcast | Small events, university | Mid-tier sports |
| Max inputs | 48+ (scalable nodes) | Up to 24 (XT-VIA) | 8 | 12 |
| IP native (SMPTE 2110) | Yes | Yes (XT-VIA) | No | No |
| Content management | Built-in | Via third-party (IPDirector) | Basic | Basic |
| Automation/scheduling | Yes (Scheduler) | Via third-party | No | No |
| Operator learning curve | Low (EVS-familiar) | High (specialised) | Low | Medium |
| Price point | Mid-high | High | Low | Low-mid |
Best multi-camera streaming setups for esports tournaments.
Best multi-camera setups for esports tournaments: PTZ + fixed cameras, vMix vision mixing, encoding redundancy, and how CBA ran 47 cameras at EWC Riyadh.
Read the articleThe future of replay in sports: IP replay broadcasting.
How IP-based replay systems are replacing traditional SDI workflows in sports broadcasting. EVS, Dreamcatcher, and the move to IP video.
Read the articleWhy low latency matters in esports broadcasting.
Why low latency matters in esports broadcasts and how SRT delivers 2-4 second glass-to-glass latency at tournament scale. Pipeline, partners, and EWC deployment.
Read the articleIndoor sports broadcasting: the complete production guide.
How to broadcast indoor sports: cameras, audio, replay, graphics, and delivery for padel, pickleball, futsal, and combat sports.
Read the articleBroadcast-grade live streaming. When failure isn't an option.
Live event streaming services in Dubai for conferences, summits and corporate events. Multi-camera production, redundant uplinks, one team from camera to viewer.
See the serviceYour players are the best in the region. Make sure the broadcast looks like it.
Esports broadcast production and video game tournament production for leagues and competitions. Multi-camera, instant replay, low-latency SRT streaming.
See the serviceCinematic multi-camera coverage. Managed by a real broadcast director.
Professional multi-camera video production for events, broadcasts, and corporate videos. Up to 12 cameras, 4K output, MCR vision mixing. Dubai and GCC.
See the serviceEsports World Cup: a Technical Manager credit across five arenas.
Esports broadcasting at tournament scale in Riyadh: a Technical Manager credit across five arenas over three months, the benchmark for our esports production scoping.
Read the case studyBitRobot at Solana Breakpoint: robot combat, live on the main stage.
Live broadcast production of BitRobot's robot combat at Solana Breakpoint, December 2025: three days, 18 hours live, a six-camera plan with roaming RF gimbal, streamed to two platforms with same-day highlights.
Read the case studyA global fragrance house: eleven sessions, replay packaged per session.
Eleven sessions over two show days for a global fragrance house: five cameras, every camera recorded on its own track, and a slide-synced replay packaged per session.
Read the case studyIP-Based Broadcasting
IP-based broadcasting uses standard internet protocols (Ethernet, TCP/IP) to distribute broadcast signals instead of legacy SDI.
Read the definitionLive HD streaming for professional broadcast
Live HD streaming for professional event broadcast: 1080p resolution, frame rates, bitrates and encoding for producers and engineers. A production reference, not a place to watch.
Read the definitionMulticam Workflows
Multicam workflows coordinate multiple camera feeds through vision mixing, switching, graphics, recording, and delivery in real time.
Read the definitionNDI (Network Device Interface)
NDI is a protocol for real-time video transmission over IP networks, simpler and more flexible than SMPTE 2110 or SDI.
Read the definitionTell us the date, the venue and who is watching.
We scope every engagement against its run of show, not a package.
CBA runs sports replay production for live sport, so the moment is back on screen while it still matters.