Have you got a satellite dish or just an ariel? we have that problem with a bedroom tv that has just got an indoor ariel. But the picture on our main tv, which gets a satellite signal, where we have a sky box, is fine. So it's obviously something to do with the signal the tv is getting. Thinking about it, we changed our main tv to a smart tv, which is connected to the Internet, as we were fed up,with poor reception, and we watch a lot of tv through that.
Yes, my bedroom TV was doing it on Sunday night. It give off a horrible cracky noise when it happens too . I've got an indoor aerial on that one so I just wiggled it about until I got a better reception .
For a few months now, on a regular basis, our TV picture keeps fracturing in a myriad bits, and the sound is just a load of crackling noise. It disappears when we switch off and back on again, but always comes back later. Can anyone enlighten me as to why this happens, please?