I recently started using my Xbox360 again and bought GH Live for it.
Everything starts well. I played the offline part of the game with no problems. Then wanted to try GHTV through Xbox Live. All well, no lag what so ever.
After a bit of playing the screen suddenly freezes in the middle of a song. Music keeps playing in the background. Can't get back to the Xbox Dashboard either, have to shut down the system. It keeps happening after a couple of songs. Sometimes also while going through the GHTV Menu.
My internet connection is wired and stable and well over the minimum required download/upload speed.
I first thought it would be overheating of the Xbox console itself, but it doesn't crash and music keeps running in the background.