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Originally Posted by cleh19 /forum/post/16933940
Did you test to see if its reproducable on all inputs, and then to check with another video source? Just trying to rule things out
Originally Posted by hammerdwn /forum/post/16934225
Ground Loop Hum. Disconnect the RF coax cable coming from outside into the cable/sat box and re-test all the video inputs. Get your cable/sat company out to fix the crappy wiring/ground(s).