I've said this before - there must be a way of doing this with something live as well as something on the HDD.
You can do stream switching, in the same way as the Germans do it. Some might say, it's very 'clunky', and the picture mutes, and/or crashes about for a few seconds, while switching between the two versions which is (apparently) unacceptable.
However, hang on, when I switch from BBC 1 HD to BBC 1 SD my telly does the same, so what's the difference in essence ?
It's automatically initiated bangs and crashes compared to manually initiated ones !
If a major broadcaster such as the BBC did the "automatically initiated bangs and crashes" as you put it deliberately, it would look messy and unprofessional and would attract complaints, or a bunch of fussy sods whinging to Points Of View!
Maybe it would, but the caption actually invites the viewer to change channel, so the banging and flashing
is still broadcaster induced !
Outside of this forum, and in the real world, I've lost count of the number of people that ask me why
they have to change channel to see the regional news. I explain why in layman's terms, and they simply mutter
something to the effect that the Beeb are crap. The present arrangement really doesn't do the BBC any favours.
It's a question about telly that outstrips any other I'm asked by a country mile.
mat76, all new Phil and AlexEdohHD13 gave kudos