I am thinking of getting a PVR in time for this years TDF but have a few basic questions: 1. How big a hard disc should I get? They seem to typically have hard discs which are 160mb or 320mb, which are supposed to enable you to record "up to" 100 or 200 hours of programmes respectively. Do you only achieve the maximum recording time if you record in some very low quality mode or do they just have standard way of recording all programs? And would I ever want to record more than a 100 hours of programs? 2. If you buy a PVR does this replace your Freeview set top box? And what happens if you already have a Freeview digital TV? 3. I am intending to get one of the Which magazine best buys - which come down to a choice between models by Humax, TVonics, Hitachi, and Ferguson. Does anyone have strong views about any of these one way or the other.