How do you fix snow on a TV screen?

Answer 1

Analog TVs get their signal from an antenna that catches radio air waves from broadcast stations. When the cord to the antenna is not plugged in or you are not on the correct station then the tv will grab whatever air waves it can that are closest to that frequency of station. Because these are random they make a white snow effect.

Answer 2

Its called Pseudorandom noise. The "snow" is actually free electrons that are pulled from the back of the cathode ray tube (CRT) and strike the phosphor coated glass causing it emit light. So each little white dot is and electron :) Might be called (gaussian noise) But either way its the same principal.

Answer 3

Assuming you mean electronic snow, not the cold white stuff that falls from the sky, that depends on your setup.

First, check all connections, especially the antenna/cable inputs to the TV. All it takes is a loose connector to allow interference ("snow") to occur.

If the connection to the TV is OK, start working back through the system. Check any splitters or splices to ensure they are not loose.

If there are several TVs in your home connected to the same antenna or cable, the signal may become degraded by being split repeatedly. If this is the case, you can buy a coaxial amplifier that will boost the signal strength and improve your picture.