TV signals are being affected in parts of Glossop.
It’s because mobile networks are being improved in the area to boost speed, performance and coverage.
Symptoms could include intermittent sound, blocky images or loss of TV signal.
Free support is available from Restore TV, which ensures people can continue to enjoy free to view TV when mobile is upgraded in their area.
It provides help to anyone experiencing interference to TV services caused by mobile signals.
Ben Roome, CEO of Restore TV, said: "If you see new TV interference, we’re on hand to help you resolve the issue. We can send a Restore TV filter, free of charge, for you to fit between your aerial lead and TV or set-top box to remove mobile signals and allow you to watch free to view TV as normal. Full instructions are included, and we can provide further advice online and by phone if needed.
“In most instances, fitting the filter will resolve any issues, but if this isn’t the case, we may also be able to arrange a follow-up visit from a Restore TV engineer at no cost, depending on eligibility.”
Cable and satellite TV, such as Sky or Virgin, are not affected.
Residents are more likely to be affected if they live in an area with weak digital television reception, have a TV signal booster and whose TV aerial is close to a mobile mast.
For more information, visit restoretv.uk