Hello Scott, Dave here! I think I know what is wrong with your TV. You have a bad LCD CONTROLLER BOARD Part #: BUD320G04011. link to this part is listed below.
http://cgi.ebay.com/SYLVANIA-LCD-TV-CONTROLLER-BOARD-BUD320G04011-6632LG_W0QQitemZ180311307613QQcmdZViewItemQQptZLH_DefaultDomain_0?_trksid=p3286.m20.l1116
Dave
Cell#: 1-503-432-9904
E-mail: pleasefixitdave@yahoo.com
Dave, December 2008