I live in an apartment with a communal sky dish. When I check the signal strength and quality settings I get the following strengths - Input 1 - c.18% and Input 2 - c.45%. Quality for both feeds is c.90%. Now accepting that the quality of the admiteddly weak signal is very good, is this likely to have an impact on the picture quality? I'm not very happy with the communal set up, and living on the top floor i'd be able to get away with having my own dish installed if this would lead to a noticeable improvement in PQ. cheers.