I turn it off, and the picture comes back. When this first started happening, the screen would remain on. But after the past few weeks, the screen keeps turning off every 3-4 minutes.
Is there something I need to change or replace? Not very good with TV's, but I am techie so I think I can tackle the task. Hopefully somebody can help..

Oh and another crazy thing! I play my XBOX on this TV. So when I change the Video input to my HDMI connection.. it's perfectly fine! It never goes off! But I switch it back to TV and boom! back to black screens.
I've changed the cables, and the ports on the back of the TV, and still nothing. I'd like to try a HDMI cable box, but I'd have to order one from Comcast first.
