TV Picture Pixelating
The TV picture breaking into blocks or squares, with the sound cutting in and out.
What Is Causing This?
- 1Signal level too low or too high for the tuner
- 2Interference from nearby electrical equipment
- 3Damaged or poor-quality coaxial cable
How Urgent Is This?
This is a cosmetic issue. It is not causing damage and can be addressed in your own time.
What Needs to Be Done
An aerial installer will measure signal strength, check for interference, replace poor cable, and fit an attenuator if the signal is too strong or an amplifier if too weak.
How Much Will It Cost?
National average estimate
Labour: £73 – £183 | Materials: £27 – £93
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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Ask a QuestionHow to Prevent This
Use screened coaxial cable to reduce interference. Keep aerial cable away from power cables. Replace old cable if it is over 15 years old.
Related Problems
Other Aerial & Satellite Installer Problems
The TV picture freezing, pixelating, or cutting out intermittently, often worse in bad weather.
The satellite receiver showing 'no signal' or 'searching for signal' with no picture on any channel.
The TV aerial has been displaced or blown off the chimney or roof mast during a storm.
Some TV channels work fine but others show 'no signal' or are missing from the channel list.