Wow. All I can say is wow. This is absolutely brilliant stuff you've come up with. I do have some constructive comments on the stuff you have made, but ultimately, I do love it.
Firstly, I have to say the BBC Blocks look like the love child of the 50's and 70's blocks design of the BBC Logo. And I say that as an observation, not a critique. Personally, the glow behind the BBC blocks is not something I like, but that's because I like flat logos, without pretence.
The Radio logos are flawless, and the ones for the actual channels are really good too. I wouldn't have changed iPlayer or Sounds, but that's me, and your alterations are good.
Having the endboard animations for trailer stings be shapes that correspond to each channel is a good idea, and executed well. However, I think you take 1 step forward and 2 steps back with BBC One. 'Red' being the BBC One colour, and Circles being the main shape for the channel is just a rehash, even with a returning globe as the main ident. I think you should do something more original than that. My preferred colour would be orange, or a yellowy orange. As for a shape, that's hard to say, but I do think that it shouldn't be a circle.
The spacing on the BBC One Regional and BBC Two Regional channels need some work. I really don't like the spacing. And with Northern Ireland having such different font spacing, it just looks messy. I'd also love you to do a once over on the BBC One ident. Its good, but the globe looks too see through and CGI. It looks very clipart to me (sorry if that sounds unjustly critical). I think having a physical globe would actually be a more powerful and direct image, travelling around the UK (maybe the world), spinning on its own, in front of national landmarks. Something like that, marrying the idea of Oneness, with the single symbol of the globe would be so good.
Television from the Liver and Onions.