Call up phillips or take your tv to a repair shop. To be honest tho i wouldnt expect much to be done with a cheap tv like that. Again not comcasts problem your tv has handshake issues via hdmi. You wont even notice a change switching to component cables. Ide go that route before i even wasted time complaining about something comcast has no control over. I really doubt even phillips wasted time on a firmware upgrade for that tv.