The Angry Video Game Nerd (TM, I suppose) isn't the funniest online persona ever, though he definitely knows his retro games (also horror movies and board games) and has been enlightening the gaming masses for quite some time now. You can watch all of his videos over at Cinemassacre.
Oh, and the pretty smart Cinemassacre Videos App has just been released and will let you watch hours of AVGN vids on the go, provided of course you own some sort of iDevice. Grab it via the App Store. It seems rather interesting: