BBC logo to start, can't really see a difference, but the logo looks terrible with those gradients, the white version is fine though.
The logo with the gradients would not always be used, but when it is, the gradient would cycle and bring some life to it especially in HD.
The channel logos look fine, although I think the BBC logo is a tad small, and I'm not a fan of the CBBC and Cbeebies logo.
The Logo may be a little small on them, I would have to toy around with them at various resolutions and determine minimum sizing, and adjust if necessary. I tried to keep the BBC Logo size consistent with all the logos when designing them all.
The News logo just bugs me, it's that gap between the 'E' and 'W', not to mention the gradient on the linear version. Could live with the Breakfast and Newsnight ones, but does look like the BBC logo is dropping of.
It bugs me a little also, I did not want the letters to actually connect, but maybe adjusting the width of the E could balance it out a bit. Its one of those things that needs some polish if I decide to do more work on them. The Breakfast and Newsnight logos, were to match with the Local news branding, so perhaps I need to treat those two as separate, as well as other BBC News programme logos.
Radio: Not much change it works.
I'm not a fan of the iPlayer logo, plus the fact the BBC logo again is jumping around the other logos, especially on 'Music' with it being higher up.
Those radio logos have personality, bold type, and consistency. So best to leave them alone
The iPlayer logo is very rough, and perhaps it needs to be its own thing, and not just working with the Web/content brands. Those web logos could also be used for Magazines etc, so rather than have a logo and text, I made them a little more logo-like, but they typically would not be all placed together, so alone they may seem fine, where as together the different alignments stand out.
On the international bits, UKTV, Entertainment, Lifestyle, and America are fine, though with Knowledge the question mark seem to high up.
I always thought the question mark was too low on the current logo, so I aligned it with the "g" and the dot with the upper overhang of the lowercase letters
Overall, I'm not really a fan of the main font, some of the kerning fits but not on others, and well the BBC just jumping around.
A bit disappointed, not your best.
I appreciate you are not too keen on the font, kerning, or logo arrangement. My thinking was that each logo needs to stand alone and work, but not be reduced to the same Striped and Stacked formation of the original 1997 branding. For what it's worth, the logos on the Web site pages would probably not feature the BBC Logo element, but BBC Food magazine, or BBC Nature on YouTube etc, would need a version with the logo.
On paper, the main BBC logo (colour on white) shouldn't work, but it does, at least for me. I echo tweedledum in that I love the font you have used. I must say I'm really not sure about the orange for BBC News and I think that Newsnight looks like the logo for a nightclub (perhaps darkening the background colours slightly and capitalising and boldening the text might work?) and I'm not keen on the brown for BBC Politics. I'm not sure about losing BBC Sport's yellow as it's quite recognisable and works as a brand, I feel.
As a whole, I must say I love what you have done but would like to see a couple of tweaks made.
It's very much a version 1 at the moment, and more capable people than me will no doubt fix those little flaws. The idea is Bold, Fresh, Modern, Clean, Consistent. And I think I have managed that.
The next step would be Finesse & Polish.