Sometimes when I switch between channels there is a flash, pause, then another flash before the channel comes on. I never had this before, but it began happening about 2 weeks ago. Sometimes there is a flash of red or pink. Anyone know whats causing this? Could it be an HDMI handshake issue? This wasn't happening before 2 weeks ago. Before then there was just a slight pause before the channel would kick in of about 2 seconds, but that is normal of course. Now there is this flashing (the banner at the top flashes twice and so does the screen sometimes before the channel finally kicks in and is displayed).