I have a Phillips Magnavox 55", and when you first turn the TV on the picture starts to shrink and goes in and out. It's like in a square shape in the middle of my TV and after the TV worms up for about five to ten minutes , the TV plays just fine. I called a TV repair man out and the prices they charges was not an option for me. What should I do to fix the problem.
Also, when I try to do the picture in picture its stays on the same channel. I can't change either one. How do I fix this problem as well?