What about PLDIA ... ch 369 ... though its an add on with the HD plus or what ever its called.. its MTV owned, nearly all the time music videos, or concerts, pretty much everythign I've tuned into has been in HD (supposed to be of course).
And ofcourse its the sad state of "naming" since MTV (like Syfy) is supposed to be Music TV .. yet they never show "Music TV" on it anymore ... and the same with Siffy .. once they changed the name, the only thing Science Fiction about it, is the crap movies they play some times with black holes ... all their good stuff is gone..
Funny .. when I was a kid I wanted MTV so badly for music videos .... when I was finally an adult, able to buy and do for myself .... MTV was not playing music videos except sometimes at night or for a few of the overnight hours ... now adays ... they may have musical shows, but it seems 99% of their stuff is just talk show or reality show programming.