Strongly rumoured Channel 4 is going to be sold. Best option is a FVP-5000T. I have a loft aerial on Lark Stoke about 30 mls away (A Sutton Coldfield relay). All 5-HD channels are on a single Mux. All transmitters (including relays) have the PSB-HD Mux. I have to attenuate the signal to 50% strength (quality is 100%) to get rock solid reception. The tuners on this box are easily overloaded.