So, after these two guys did kind of a tribute for Sonic the Hedgehog's 20 year anniversary by
playing every Sonic game , they're doing it again for Mario. It's much better this time around, as the majority of commentary actually has to deal with the game, series, or Nintendo in general. Their commentary kind of plays out like a podcast, so I can typically tab out and work on other things while listening to them. Also, pretty much every single game will be genuinely great this time around (No Sonic '06-type shit), so that's nice. Their Super Mario Bros. Special video is my favorite so far (I'm interested in crappy old PC ports in general for some reason).
Link to Youtube Playlist:
http://www.youtube.com/playlist?list=PLipgnTt01UGUjDKNNZyPqHYlHB8XlgKpY