Television and Home Theater

I'm going to adjust my Panasonic PT-51SX30B using Avia and the serviceman menu.  Could anyone give a brief explanation of color cutoff and color drive and which to use to adjust my color balance.  There are 3 cutoffs and 3 drive settings, one for each color. Any advice on fine tuning these settings would be appreciated.

Hi all,

Today I bought a Philips digital tv which is fantastic.  The problem is that you can switch between analogue & digital channels but when you do that you can hear the sound from the last analogue channel you have watched when watching & listening to a digital channel.

I can find no way of turning off the analogue tuner.

Any ideas anyone - Philips support line is quite helpful and not open at weekends.

Thank you.

 About 2 months ago my tv started to go out. The first 3 inches at the top of the screen was a zig zag pattern. after about 30 minutes on, it would go away. now the whole picture is this way and wont go away. my dvd player appears this way also. All my High Definition channels are good to watch, the pattern doesnt appear on them. Can i fix this myself and if so, how. Any help would be appreciated.      [email protected]