While you wait for answers, we may have found some information which could help you.
Click here for Panasonic Television PictureFlicking between AV and dvb?
My tv Panasonic tv TH 42-42pz70ba?
How to remove EC2/RGB from top left hand on television screen?
Saying temporarily off air is it a minor issue?
How can I connect my panasonic Cs29fx20ss TV model?
Take base off?