Also included: info regarding who recorded what parts on each song and which day, info about all of their albums, etc.
History of the Drum Kit
Though this is not really a Beatles-related video series, Ringo is mentioned at the very end of the series as he was one of the first to play with "matched" grip for snare (rather than "traditional" grip, which was used for marching snare drummers.)
Daniel Glass does a solid job putting together very short yet pertinent video history clips walking you through the evolution of the modern drum kit.