Looking for a Paul McCartney quote | Fab Forum

I've heard this clip of Paul McCartney a few times recently, from an interview that he must have done within the past few years or so (he sounds a bit older), where he says something along the lines of "I've always regretted that I never got to see The Beatles perform, it seemed like it would have been a lot of fun to be in the audience and screaming and having a good time," something like that. I can't find the source and I wanted it for a project. I thought the "Eight Days A Week " documentary would have been a sure bet, but that's not where it's from.

Any ideas?