I enjoy watching some good retro videogame youtube videos such as: Mark from CGR(undertow sucks), Game Sack, and Retro Snow(he seems to have retired from making vids).
NOT the angry/pissed/irate lames who think they're funny. Nor vids with idiotic-sounding commentaries, playthroughs( I'll play through it myself), unboxings, or people showing you what they recently picked up(I could care less).
Good clean, informative, and professional videos that are entertaining to watch. Any other recommendations similar to the channels I mentioned would be much appreciated.