So, you can fix your TV, even the thin plasmas and LCDs. I've done it twice. I paid about $2k for the thing 2 years ago, I don't wan't to replace it (59" Samsung smart tv, 3D, all that stuff).
The first time, the thing wouldn't turn on at all. I opened up the back of the plasma and started replacing boards, one at a time (see #1 #2 and #3 in the pic). #1 was the power supply board, I was sure it would be that one. Anyway, #3 fixed it. I bought these boards used off ebay. Turns out that a lot of people break these screens, and the repair companies sell off the boards and parts. I bought those 3 boards for less than $100 total.
Then, about a month ago, the picture got these fuzzy lines running vertically all over the picture. It was watchable, but irritating in certain scenes. With the Masters coming up, and tomorrow the first day of baseball season, I needed to make that problem go away. I opened it again and started probing cables with a stick. When I touched the cable at #4 there, the problem went away. The connector was not seated at all. It was clearly not right. I'm 99% sure I never touched that cable when I was fixing the original problem, so it might have been there from the factory. Well, it's possible I did it.... yea, I probably did it now that I thinking about it.
Anyway, in case anyone else has these sorts of problems, rest assured you can fix them yourself.