Sony FD Trinitron WEGA KV-27FS120 27" TV "reception night" Questions

...reception. One channel (BBC 1) is snowy but there is sound. All other channels are just a blue screen with no sound. TV worked fine the night before and their old TV works with no problems with all ...

night when it turned on fine, then flickered and suddenly the entire screen went snowy like on crt over the air reception issues. I turned if off, change inputs, wiggled cables but no help still snowy

reception and when we press the Menu or Set Up button there is a delay, then the Menu/Set Up box only appears for a few seconds then disappears. Does the Digiboard need replacing? TV engineer say this

No Power Sony KV-27FS12 Suddenly my Sony KV-27FS12 will not turn on, no lights, no clicks, NOTHING. It worked fine last night & then this morning, nothing. I moved the plug to a several different ...