How is that of any use at all? To anyone ever?
I can think of a a couple of uses.
Listen to sport on 5 live in the car, jump to watching it on the TV when you get home. Handy if your TV is slow to start up, as some smart ones are, and you miss the goal/crash/streaker
When recording sport to watch later its a bit annoying when you turn on the TV and accidentally watch a bit of it and find out who is winning or whatever. Turn on the TV, change channels and start playback and you can watch from the start without accidentally watching the end
Pretty minor, I’ll admit but mildly handy