Sky News and BBC News have also used this to run a number of separate feeds, generally kept to different subjects, selectable at will. The BBC also used this for live coverage of The Olympics and Wimbledon, for event or match selection respectively. Sky Sports would use this to broadcast eight football matches simultaneously on one channel regularly - repeating all that day's Premiership matches as live, allowing the viewer to select which match they would like to see, without having to run eight entire channels. Most used by Reality TV - or at least programmes with a 24-hour ongoing element - but it is not unheard of to see it used for longer event and news coverage without upsetting the standard schedule. This happened in a similar fashion to the way Sky Sports offered football above, with a choice of two camera angles, two looping highlights reels and text-based news updates.

The musical audition show How Do You Solve A Problem Like Maria also had a karaoke feed.Įxtended Live Coverage Channel 4 first used this for Big Brother Live - instead of dedicating its entire satellite channel E4 to broadcasting house action live, it broadcast it during the channel's down time (it was not a 24-hour channel at launch) and broadcast its normal programming for the bulk of its normal time, while still offering the option to watch BB by pressing the red button.

This was later extended to audio selection, offering a choice of commentary tracks or even just the crowd noise. The BBC have also adopted similar services for their sports coverage. This was later expanded to all football matches, as well as some rugby and cricket.

The first major use of the technology was to provide alternate angles for football coverage, by Sky Sports- during selected Premiership matches, viewers could choose to watch the entire match from one of four angles consistently, or switch between them at will, as well as pull up statistics, highlights and other information.

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