The GH LIVE mode puts you on stage looking at the crowd that reacts according to how you play, either cheering you on or booing you.
The GHTV mode puts you in a music network where you can play in real-time, discover new music, and compete with friends from around the world.

GH Live: You are the rock star. Playing in front of a real crowd, you will experience your best musical experience. With the new GH Live First Person View, the entire stage is yours. A rock crowd with real reactions. Feel the pressure from the crowd during the concert and play your best to win them over and get their cheers. If you don't succeed, the crowd will boo you.