Pixillating LG televisiion

blewitt

My 6 year old LG television (not  smart) has started breaking up on all channels.  It has been fine for weeks, but today I cannot watch anything.  How do I check if it is the ariel or the tv itself, or could it be the signal.  Thanks

almillar

I can't see it being the TV itself just suddenly having a weaker tuner. First, a try a retune, then try unplugging and plugging in any aerial connections you can. Check the aerial is still aligned correctly, and check the length of the cable for damage - most likely is obviously at either end and outdoor parts. Buying a new TV to fix this could be an expensive mistake!

Browntoa

Hot weather the last few days , no signal on many Freeview channel

Al_Ross

High air pressure does not directly affect television signals, but it can produce an atmospheric temperature inversion.

Air temperature generally decreases with height above the surface of the earth, but an area of high pressure can cause air to sink and warm. This warm air is more buoyant and can trap cooler air nearer the surface.

This creates a sharp thermal contrast in the atmosphere which can cause radio waves to be refracted or reflected. As a result, some signals can travel further than usual, a phenomenon known as tropospheric ducting, producing interference with transmissions from other sites

Where signals are on the same frequency it can cause co-channel interference. This can result in scrambled signals and poor reception, ranging from intermittent break-up of the picture to the inability to decode some channels. This may last for a few hours or several days. Not all viewers are affected, as it depends on local conditions and the distance to transmitters using the same frequencies.

Viewers are advised not to retune or rescan channels but simply wait for the weather to change. Satellite, cable, and online services are unaffected.