My Premiere 4 started crashing (re-starting) last week. It would still be under warrantee except I upgraded it to a 2TB drive myself as soon as I got it (March, 2013). I think it is crashing when I press the TiVo button (but not every time; I can't intentionally reproduce this) to look at My Shows but it may have done it on its own a couple of times. I am using the HD menu. Does anyone have any advice for me?