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Picture breaking up

New Poster

Picture breaking up

Why does the picture break up on certain cable channels, never broadcast channels like ABC , but on TNT, HALLMARK, AMC, and many others. Could it be faulty cable box & remote (the new style)?

Gold Problem Solver

Re: Picture breaking up

Loss of picture might be caused by a bad cable box, but is more likely due to a poor connection between the box and Comcast's network. Such problems can affect a single channel, several of them, or all of them.

Troubleshoot by checking all connectors and looking for damaged coax cable. Running the cable through a surge protector, a defective splitter, or too many splitters can cause signal problems as well. If there is an amplifier in the line make sure it's getting power. You might also try unplugging the cable box/DVR/digital adapter power cord for a minute or so.

If you can't find the problem, call them at the phone number on your bill or 1-800-Comcast, or chat with them using one of the "Trouble" options at https://www.comcastsupport.com/chatentry/. Ask them to check the account setup and send a refresh signal to the box. If they can't fix the problem remotely, insist they send a tech out to identify the cause and correct it.

If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit unless you have or sign up for their Service Protection Plan (https://www.xfinity.com/support/account/service-protection-plan/, about $6/mo) and keep it for at least 60 days. If the trouble is due to a faulty Comcast cable box/DVR/digital adapter or anything outside your home, you shouldn't be charged.

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