Read this: Please Wait... - BBCi Labs
Summary: However due to the way our service has to be structured, it's an unfortunate necessity. BBC Red Button has a chunk of space on each of those transponders which enables us to have a service alongside the TV channel - so that when you press red you don't need to leave the channel you're watching. Our video services too also sit in another transponder to the TV channel. - bbc.co.ukwww.bbc.co.ukPlease Wait... - BBCi Labs…
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