There are a number of possible causes of picture break-up, pixelation or freezing. First, try restarting your digital box or TV, as there may be a glitch in the software. Simply unplug the box from the mains power supply for about 10 minutes and then plug it in again.
If this does not help, please use our reception problems tool to diagnose the problem and get advice on what to do.
If this did not answer your question, please advise what information you would expect to be provided.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.