Lots of Paul Frees voices here. In addition to voicing John Lennon and George Harrison (doing a weird variant of his Peter Lorre impression for the latter), he did many of the incidental male voices. I can spot Frees's voices pretty well after years of hearing him in Disney, MGM, Jay Ward and Hanna-Barbera cartoons.
"I thought the travel agent said Pennsylvania, where all the pencils came from" Man, for being what every person on the show internally thought was a cash-in on (what was thought to be, and well... kind of was) a fad for a quick buck, this has some clever jokes.
