# electrical interference **URL:** \ **Category:** Factual Questions\ **Created:** [January 9, 2013, 11:21am UTC](https://boards.straightdope.com/t/electrical-interference/646612 "2013-01-09T11:21:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![barsnax](https://avatars.discourse-cdn.com/v4/letter/b/c68b51/32.png) [@barsnax](https://boards.straightdope.com/u/barsnax)\ **Post date:** [January 9, 2013, 11:21am UTC](https://boards.straightdope.com/t/electrical-interference/646612/1 "2013-01-09T11:21:33Z")
I am having trouble with electrical interference which is affecting my digital TV. It also effects the TV when I switch it back to analogue. I live in a block of flats and we have a common digital aerial on the roof. I’m assuming that it’s someone else turning on a light or some electrical device. It goes on for hours sometimes turns off for a minute or two then goes back on again. Is there a way to find out where or how this interference can be stopped. My neighbours don’t seem to have this problem.😕 ---
**Author:** ![njtt](https://avatars.discourse-cdn.com/v4/letter/n/ecd19e/32.png) [@njtt](https://boards.straightdope.com/u/njtt)\ **Post date:** [January 9, 2013, 11:40am UTC](https://boards.straightdope.com/t/electrical-interference/646612/2 "2013-01-09T11:40:44Z")
What makes you think it is electrical interference (by which I assume you mean from the power line) and not something else? After all, _all_ TVs are connected to (and thus close to) the power lines in a building, and so are presumably built to be able to handle this, and normally succeed. What are the actual symptoms? ---
**Author:** ![barsnax](https://avatars.discourse-cdn.com/v4/letter/b/c68b51/32.png) [@barsnax](https://boards.straightdope.com/u/barsnax)\ **Post date:** [January 9, 2013, 11:45am UTC](https://boards.straightdope.com/t/electrical-interference/646612/3 "2013-01-09T11:45:38Z")
The TV digital channels will be fine then it pixilates and becomes unwatchable. I switch to analogue and the electrical white lines appear but is watchable. It just looks like somepne flicks a switch or turns something on.