Sorry if this is stupid. Would really appreciate any help. I just bought a new plasma and a freeview box (the Sony VTX-D800U) - I set it to Autotune and it looked for about 20 seconds before reporting no channels found. I repeated a few times with the same result. Does this definitely mean my aerial needs upgrading? Or is it possible there's another solution. I live in a block of flats in the middle of London, and am connecting the aerial socket in the Freeview box to the communal roof aerial (which gives more or less perfect reception for terrestrial 1-4, no real signal on 5). I don't think there's much prospect of the getting them to upgrade the communal aerial, so I'm hoping there's an alternative solution... Thanks!