I'll admit I didn't use the YouTube app frequently, but it doesn't look any different to me. None of that auto-play stuff I've seen mentioned is happening here.
http://t.co/bo5SaVa6
Here's the dialogue box which comes up when you hit record:
http://t.co/szRBWVFF ...clicking OK on Express Series Link sends you back to the programme and doesn't require any further confirmation. When I tried it with a broadcast movie, I got a cutdown set of options - "Record this movie" and "Explore this show".
Here's the TV Guide going back into the past, with the channel names over on the right:
http://t.co/VLiej7hd
---------- Post added at 00:17 ---------- Previous post was at 00:11 ----------
Hard to say if the SD picture is better, it certainly looks good but it always did. I haven't taken a picture of Sky channels showing in the mini preview, but I can assure you they work (watching SSN now).