Eliminate the recorder completely. What happens if you plug the aerial lead directly intpo the TV (Assuming the TV is a digital one, that is). How good is the picture. Any noise? No: your problem is probably with he recorder. Yes: the ussue is elsewhere.
How does the recorder connect to the TV? SCART? Component? HDMI? Can you use a different connection to eliminate the current recorder output?
Is there noise if you watch recorded show? Is there noise if you watch realtime TV via the recorder?
XXX
January 2017