Unfortunately, I think in most cases, you're probably better off investing your money in a new TV rather than trying to repair your existing one. It's been several years since I've interviewed or spoke with TV repair guys, but last time I did, most mentioned that like most consumer electronics these days, buying a new piece of equipment is more cost effective than attempting to repair an older one.
You can find ratings and reviews for local TV repair providers when you search Angie's List, as well as more than 500 other service categories, but only Angie's List members can unlock access to the ratings and reviews. If you'd like to join Angie's List at a discount, you can use the promo code ANSWERS to get 20% off the normal price of a 12-month memberhsip plan. Good luck with your decision!