Sky UK Cuts Live TV Sport Streaming Latency with New Real Time Feature
Customers of Sky’s broadband-based Sky Glass and Sky Stream pay TV streaming devices and service are gaining access to a new feature called “Real Time“, which is designed to improve the experience of watching live sports content online by “reducing latency between the live action and what viewers see on screen“.
The issue of broadcast lag (latency) in live online TV sport streaming is a well-known frustration. The problem typically causes streamed content to display a few seconds behind the action itself, which in some cases can even stretch into the tens of seconds. As a result, somebody listening via the radio or watching the live action via a terrestrial digital TV (DTT) channel may hear a key event take place before those viewing an online stream.
The latency created is the product of various aspects of how live video content must be processed / compressed, cached and redistributed over modern digital networks. Over the years we’ve seen various network operators and companies come up with ways of reducing the impact of this and Sky’s new Real Time feature for Sky OS is the latest example.
Advertisement
Sadly, Sky hasn’t provided any technical details to explain exactly what they’ve changed and how much of a real-world improvement it will actually deliver (it doesn’t completely remove lag as they state: “see the action almost instantly – watch what’s happening on the pitch within seconds“), although it does appear as if ‘Real Time’ performance attracts some stronger broadband connection requirements. In addition, the Rewind Live TV feature won’t work at the same time:
Internet Connection Recommendations for Sky ‘Real Time’
- Streaming in High Definition (HD) – 25Mbps
- Streaming in Ultra High Definition (UHD) – 30Mbps
- Streaming in Real Time – 40Mbps
- Rewind Live TV is not available while using Real Time
Sky Real Time is currently only available on select live sports, including the 2026 World Cup on BBC and ITV, via the opt-in button or via the dedicated channels listed below. Customers just need to select the Real Time option on-screen during supported live sports to adjust the stream.
Dedicated Channels with Real Time Support
BBC One HD RT – EPG number 926-944 (depending on region)
ITV1 HD RT – EPG channel 945
ITV4 HD RT – EPG channel 946
Mark is a professional technology writer, IT consultant and computer engineer from Dorset (England), he also founded ISPreview in 1999 and enjoys analysing the latest telecoms and broadband developments. Find me on X (Twitter), Mastodon, Facebook, BlueSky, Threads.net and Linkedin.
Advertisement
Leave a Reply
Privacy Notice: Please note that news comments are anonymous, which means that we do NOT require you to enter any real personal details to post a message and display names can be almost anything you like (provided they do not contain offensive language or impersonate a real person's legal name). By clicking to submit a post you agree to storing your entries for comment content, display name, IP and email in our database, for as long as the post remains live.
Only the submitted name and comment will be displayed in public, while the rest will be kept private (we will never share this outside of ISPreview, regardless of whether the data is real or fake). This comment system uses submitted IP, email and website address data to spot abuse and spammers. All data is transferred via an encrypted (https secure) session.
Until Sky Stream matches Sky Q latency I won’t even consider it. The only unique USP sky had was “live” sports. Im surprised they are allowed to advertise stream Sky Sports as live TV.
I don’t think you understand the definition of “live TV”…
“Live TV” does not mean transmitted to your eyeballs instantly with zero latency. Rather, it is produced live than transmitted. If you are watching on Pluto it’s still live, it just takes a while to get there…
Stop being facetious bob. Your comment on another post directly contradicts this comment.
If it’s like Twitch low-latency mode, then I believe they just shrink / remove the buffer on the client. It does mean a decent connection is required as any errors will be noticeable. But that should be less of an issue nowadays. Perhaps they also use a low-latency codec too?
It will be similar to how the BBC are approaching it, https://www.bbc.co.uk/rd/publications/public-low-latency-streaming-trial
If it’s the same technology they use for Live Sync on Sky Sports (and why wouldn’t it be) then the target latency is 8 seconds.
They still haven’t fixed issues with UHD content via Stream and the Dolby audio glitches from four years ago.
I cancelled my service penalty free around four years ago because the product wasn’t fit for purpose and not delivering what I was paying for.
I trialled the service again back in January and it’s exactly the same, despite a 300+ page thread on their official forums and all the complaints it’s unchanged.
Can someone explain me why should I care about a few seconds latency when watching (live) sports? If I could draw up a wish list what I want form sport streaming this wouldn’t even be on the bottom if the list.
Maybe you’re chatting online about the game and people start celebrating a goal 30 or 40 seconds before it appears on your screen. Maybe you’re in the kitchen watching on the iPad while the rest of the household is watching on broadcast TV. Maybe you’re following a live blog or other watch along. Any time you don’t want to be out of sync with other people really.
You are watching via a streaming service. Your neighbour is watching via Freeview. You will know a goal is coming 50 seconds before it happens on your TV!
Errr – penalties, where you get phone notifications first, cheers elsewhere. It’s really annoying. Glad they are fixing it and wish they would do it for Sky Go (and increase the Picture resolution)!
Doesn’t sound like a miracle. Being unfortunate enough to like F1, Sky is almost unavoidable in UK but there are so many problems with the service and there are so many problems with the Sky stream its almost unbelievable.
When I originally subscribed, I read ‘professional’ reviews which were very favourable but I have found that the puck is poor quality, the customer service is a joke (treat you as a moron and never explain problems), the playlist which supposedly replaces recording is full of holes, they almost never make any improvements and while forcing you to pay for Netflix, they gradually reduce the number of channels of interest – almost as though there is an agreement with TNT to try and force people to subscribe to both. Altogether a dismal result of the ‘free market’.
It was so funny during the last tournament, I was watching via DTT on Freeview on BBC One HD and we scored and got a message on my flats WhatsApp group saying how I was so ahead of him (remember most people don’t read websites like this)
I told him to plug his aerial in and switch to 101 on his TV (he didn’t even know you could do this) and bin off iPlayer, he’s never looked back during any footy tournament on TV.
Streaming sport is very poor, this move is a step the right way but when DTT, DSat and even good old AM radio are nearly 90 seconds ahead (you’ll know the pain if you use NOW) then I’m watching all my sports via Q, DTT or I’ll even listen on the radio!
Great progress just not there yet.
The delay on F1 using stream is circa 47 seconds.
Proof advertising this as “Live” is farcical
Around 9 seconds delay on Stream using Sky’s live sync channel
People will be in bed during this one watching almost one day later anyway for most of it.
The Lack of an IBA, and the utter joke that is Ofcom. No standards have been properly set for a post Radio/Satellite Traditional Broadcast over IP.
Openreach have come closest running a multicast sub network to handle broadcast TV that never became as popular as they would have hoped. DVB M2TS multicast over IP, available on every open reach line. At least it’s real broadcast TV with the same latency’s as normal TV. BTTV /EETV being the main users,
Best we could hope for now would be some protocol like SRT to carry these live streams over the regular internet to be build into STB’s for actual Live streams. or Hope Satellite TV doesn’t die with SkyQ!