Either flakey solder connections or caps in the video processor circuits.
May need to scope the signal to findout just were you are loosing it.
"Bradley26" wrote in message
news:_QDbd.8$mP3.6@trnddc08...
Hi

On this 30" Toshiba, just over 10 years old, its suddenly started going
snowy on the video

its like 90% snow, not 100%

On any input, rf, video 1,2,3,4 or SVideo, if you push on the tv from any
direction or tap it with a fist, the pix goes clear again. the audio
remains the whole time.

Anyone seen this problem?? Ive opened it, checked around the tuner
section,
its dusty but everything is tight.

thanks