Oh, yeah, I loved the Hey, Bulldog sequence as well. Granted, it helps that I like the song to begin with. I will disagree with Kev that I think it was rather pointless. Don't get me wrong. There are a few extremely pointless musical numbers in there, even with the somewhat tenuous standard it has set for that, like the Lucy in the Sky with Diamonds and It's Only a Northern Song numbers, which really are just, "Here's a song." At least the Hey, Bulldog sequence ties in to what's going on at the moment.
That's not really knocking it, and don't worry, kev, I really enjoyed watching it. Like I said, I didn't even notice the audio problems until near the very end.