When turned on, why does the TV make a loud static noise with a snowy screen and turns itself off and on a couple of times before a normal screen and sound come on?

SOURCE: Vizio makes loud static noise, picture goes fuzzy.

You should check your home wiring and grounding. Also be aware of anything that has recently been turned on when this happens. Anyone using a microvwave, cell phone, or other appliance that might be causing the interference.

SOURCE: TV Powers off after 30-45 mins

I had the same problem with my 1 year old 26" TV. I called Magnavox customer service, and they had me upload a new software driver to the TV - which didn't solve the problem. Then they suggested that I call the local Authorized Service Center - and they estimated that it would cost $200+ to fix the problem. But then I found the "remove the back solution" listed here - and it worked!
Thanks, you saved me at least $200.

SOURCE: New 40 in Dynex having issue

Just got off the phone with Dynex, sounds like a common problem with a recent batch.

Tech support suggested returning the tv to futureshop/bestbuy since I'm within 30 days of purchasing.

SOURCE: loud static noise without warning

this problem come due to memory ic faulty contact service centre for memory is

SOURCE: for a couple months now whenever we turn on the tv

u have 2 bad capacitor on power supply , if u take the back cover off and take a look at the power supply u would see 2 bad capacitor they are on top exploded