RCA 45la45rg has sound no pic

[Roxy1956]

My TV has only sound no picture after unplugging the direct tv box and plugging it back in...I had already tried with flashlight to see if the menu was on screen, it was not....And after a week tv sound as well as pic not working...Power display light goes from red to blue....What could cause this to happen

 

[ononejustcuz76]

My TV has only sound no picture after unplugging the direct tv box and plugging it back in...I had already tried with flashlight to see if the menu was on screen, it was not....And after a week tv sound as well as pic not working...Power display light goes from red to blue....What could cause this to happen

i have a 65in same problem can anyone help ?