I've just replaced my Bush DFTA4 Freeview box with a Sony VTX-D800U and generally am pleased with the overall improvement. Channels which were virtually unwatachable before (Sky Sports News and UK History in particular) are now excellent - BUT on the other hand, ITV1 and Channel 4, which were perfectly OK on the Bush now suffer bad picture and sound breakup - you know, the sound like your granny's budgie is speaking to you I live within 20 miles of a digital transmitter and have a digital compatible arial in the loft and the signal strength in the Sony settings states 'Good' so am at a loss as to why these channels are proving so troublesome. One thing I did spot was that the automatic tuning process allocates ITV1 and Ch4 to frequency setting (?) 25 whereas the digital channel list in the Sony instructions say these two channels should be set to 47 for my local transmitter, however setting them both to 47 manually does not improve things so I'm back to square one! Its frustrating as the overall performance of the Sony is superior to the Bush but the down side is I now have two of the very popular channels affected by bad reception. Is it simply a case of having to erect an outdoor arial?