Ahoy's YouTube channel has a bunch of video game videos. Most of the animated ones are about weapons.
Rizenvisual's YouTube video channel has a bunch of funny and (geek/nerd)y videos in real life (IRL). Many of them are related to video games
GameTrailers (GT)'s web site has a collection of videos on various video and computer games. There are histories, facts, etc.
MajamiHiroz's YouTube channel has a bunch of videos, with cussings, showing mostly (spoof/parodie)s of mostly video games and the (19)80s days -- "Welcome to the '80s.
Reddit has a group for recorded videos showing the stories to various video games.
Mr.TVCow's YouTube channel has a bunch of funny videos related video games, entertainment, visual/special effects, etc.
Idoiocracy's Reddit re(ply/sponse) mentioned his The Making of Games' alphabetical index of all submissions with many links including videos.