[holden]

There's a good chance the Panny TV automatically switched over to cable TV because it didn't detect a usable signal coming from the Blu-Ray player. Displays often seek to the first usable signal they find in cycling through the possibilities.

The output of the Blu-Ray player may have been set to a screen aspect ratio and timing your TV can't handle, e.g., 1080p at 60Hz.

Try setting the output from the BD-30 to 720p (60Hz, always), making sure it's outputting onto HDMI.

"compression blur that 'HD' cable has". There's certainly always more to learn hanging out high def video, eh?

HF

[megatherium]

I had the player set at ‘auto’, as far as selecting aspect ratio; it was supposed to select by itself. What I forgot to mention is that after the TV switched HDMI inputs to the cable box, if I manually switched it back, I had perfectly good output from the player. Anyway, the problem appears to be solved by turning off the (default setting) of EZSync. But thanks for the suggestions.