I have to borrow some of what RobTheDrummer said, from a Musical standpoint, especially video-wise, neither. They are all about image and not Music. When MTV started, there were a lot of tunes, just seeing the Bands play them was fine - when the videos started being huge productions, they lost me. I hear a lot of people talk about this video and that video and I just smile, for I haven't seen them. Two months ago, I saw part of a Scorpions' video for the first time, the one with the cage - well, I thought it was pathetic. I only have one VH1 and MTV Channel, and VH1 wins hands down, if only for the "Behind the Music" Documentaries. Also, it's one hell of a funny parody for Mad TV and SNL! "MORE COWBELL!" If "Don't Fear The Reaper" comes on and my children are around, one of us says that, never fails.

I have been watching a lot of VH1 the last week or so.
PBS does kick major Musical ass!
I saw Fleetwood Mac on there over Easter weekend (On a PBS Station in the Eastern part of the state.), and have to say "WOW" about Lindsey Buckingham's Guitar playing!