It didn't take long; MTV has already turned inward. This latest romp, promoting the solo LP of the most demure member of Van Halen, is a parody of MTV in the form of "DAVE TV." All the standard eyecatching extras show up for a combination freak show and centerfold scouting trip. There are also video send-ups of Michael Jackson, Cyndi Lauper, Billy Idol, Boy George and Willie Nelson. Through it all the inimitable Dave is at his most puerile, mugging, preening and wriggling his pelvis. This celebration of mindlessness is actually sort of fun to watch, which is fortunate; you may have to turn down the sound since the song is so bad.