SOLVED TV Screen flickers
I recently had a call about someone’s TV screen flickers out or going blank for a moment when the switch on any light in the house or bathroom fan. After checking for any loose connections on the lighting circuit, I then focused on the equipment. They had a LCD TV with a satellite box wired through a string of extension leads. I tried to change to just one extension lead but the problem was still there. Then I plug the TV and sat box straight into the wall sockets but the problem was still there. Next we tried an extension lead with Surge Protector and Mains Filter. But still the same problem.
Then we took a look at the lead from the sat box to the TV. . It was a cheap hdmi lead. We swapped that for a high quality one and hay presto the problem had gone!
A special thank to © Andreadams1974 @ https://www.stockfreeimages.com for tv image