Several days ago I noticed there is a vertical red line which runs from the top of the screen to the bottom. C4 channel seems to be casuing the most problem, when I switch channel to say TV3, I can still see it, but not as bright as in C4 channel. I try TV1, and 2. It is there too. This problems seems to have disappeared last night. My TV set is a sony lcd w4500 series, it is about three months old, bought brand new from Bond and Bond. Before I call for the service center, I was just wondering, it is something to do with the digital freeview channels or is my TV set going crazy ? Please help.