Ahh, another BBC thread.... shall I indulge myself? Hell yes!!
Firstly, on the original question, it seems the timing does coincide with the US Presidential elections. So yes, it is a good idea to simulcast BBC parliament on BBC2 so that it can get the HD treatment.
But this thread has turned into a more what/how many channels should the BBC carry and what should be on them. More of that in a second...
On Chris'/Old Boy's discussion, if it were purely just a question of royalties/repeat fees which prevent the BBC repeating their prime time line up during the small hours, how does that explain iplayer?
Some dramas/comedies are on iplayer for 30 days and all the main ones are available for at least 7 days. So the BBC either pays for repeat fees on iplayer, or it doesn't. But either way, I see no reason why the BBC couldn't repeat their prime time schedule at night as its already on iplayer.
Back to the BBC and what channels they should have..... They should carry BBC Parliament, but this is not a true BBC channel as it is parliament rather than BBC produced content, so shouldn't count towards their channel count. As for the others...I would organise as follows:
BBC1 - Main channel showing general entertainment shows, drama, comedy, news bulletins, current affairs, factual and other mainstream genres.
BBC2 - Should go back to being what it was designed for, ie a spill over channel for BBC2. If sports need to be shown uninterrupted, they can go on this channel. As well as special event programming such as Stargazing Live. Pre-school shows would be a large part of the daytime schedule. Local/Regional news and shows feature in the evening. Open University fill other time slots.
BBC3 - Should be the kids/teens channel. Kids programming shown before school, then revert to Schools programming during the day, the kind that used to be on BBC2 (ie Look & Read), then kids shows resume after school and into the evening. Then around 8/9 pm it should become a teen channel with more experimental/risque content.
BBC4 - Should be the news/politics/factual/arts channel which can revert to a rolling news schedule, as and when needed. With specialist programmes on money & business, science & engineering, health & medicine, education, technology etc
All channels apart from BBC2 would be national channels and would show the same content across the UK. Only BBC2 would have different regional versions. That in itself would save the BBC a lot of transponder/DTT/cable carriage fees.