I have a Sylvania 15" HDTV LCD mocel LC155SC8, manufactured in May 2007. Yesterday while plugging it in after cord got knocked loose, the screen flashed for a second while powering on, then went black. There appears to be nothing happening now. This is very disappointing since the TV was a Christmas gift last year and is used infrequently.

The set was purchased at Sam's Club, and I doubt they will take it back. Is this something worth fixing?