I agree with TF for some of that. I don't care for covers, though I liked Stevie Wonder.
I didn't like the special. Too many awkward crowd shots of people rocking or nodding their heads. Yoko and Olivia should have probably been able to say something (ok Yoko haters have at it.)
The stuff with Letterman was incredibly forced.
Why does LL Cool J host every CBS musical program?
In all, I fast forwarded through a lot of it.
I've seen Jeff Lynne sing too many Beatles songs over the years. He did the same thing at the concert for George when Harrison died.