Yes, after some further search I also found that MHD is becoming Palladia.

Found this on one other forum:

Originally Posted by MTV Networks
A music-television experience so vivid you'd swear you were there. Palladia: the state-of-the-art, high-definition channel that showcases the best in music, from today's biggest artists. Featuring stellar Dolby 5.1 Surround Sound and high-grade picture, Palladia is your all-access pass to the hottest music programming ever seen - and heard - on television. The channel's predominantly LIVE performances create a truly enhanced music experience; the sense that you are there - that you can touch and feel the music - is at the heart of Palladia.