[andy_m]

Originally Posted by spiderplant

If the BBC were to do this, they'd still need to broadcast multiple copies of the HD channel, as well as the existing multiple SD channels. This is what costs.

I suppose in theory the STB could do the switching at the appropriate times by retuning to the local SD channel (in a similar way to how the STB retunes to the off-air slate on the part-time channels), but that would require substantial software and system development by VM.

Thanks for the answer. Obviously it's not for Virgin or Sky etc to do the switching for the BBC.

I won't risk going off topic by wishing everyone a merry Christmas