TV Pixelation: What Causes It and How to Fix It Properly

TV pixelation — those annoying frozen blocks on your screen — is almost never a TV issue. It’s a signal issue. Understanding the cause is the first step to a lasting fix.

The three main culprits are a degraded antenna (especially antennas over 10 years old), damaged coaxial cable (often chewed by rodents or cracked by UV), or a faulty signal amplifier/booster that’s actually adding noise instead of improving signal.

A professional technician will use a signal strength meter to measure dB levels at the antenna, splitter, and TV point. Anything below about 45 dBμV or with poor signal quality percentage will cause pixelation.

For Sunshine Coast homeowners, Brocky’s TV provides expert TV pixelation diagnosis and repair.