Samsung TV stopped displaying picture

My TV stopped showing the picture while I was watching TV last night. The sound continues to work. I tried turning it off and on. Same thing, and I noticed the power/standby indicator light flashes instead of staying on, much like it does when you first turn the TV on, though it persists in that fashion. I undid the cable (we just got cable installed) and hooked it straight to a DVD player. Same thing, sound but no picture. Is the CRT shot, or is there some setting I am missing? Thanks for your help, gulfsurf54@yahoo.com