Screen started with 3 white spots, now it looks like it is snowing. What's wrong?

like snow-- indicates primarily an antenna connection problem or the wrong av selection to a device not connected

Nothing wrong with motherboard engine it seems looking like issue with plasma display connector top left and right side , if you good on that to do it yourself then have look pic or send me pics inside http://electronicdoctor.weebly.com Connection may be different on your TV set

the white circles are called halos caused by technically a burn-in u either ignore or change the screens particularly the one on the inside for a new one......the halos have made a burn-in on the screen its like taking a spot light and pointing it to a surface for long the light will eventually image its circular image on the surface like a discolouration hence the snow like white balls as u call them....another suspect the optical dome glass maybe dirty u got to open the box screen chamber and use a soft cloth to clean it

On a WS-73735 the white spots usually mean a failing or damaged optical light engine.

It is a major part----Google the model number with "problems" or "light engine" etc.

getting white spots on screen and more as time goes on? Damaged or bad optical light engine.

Sounds like the DMD chip is getting bad pixel failure. Most likely the chip will have to be replaced.
If the white spots are well defined and rectangular in shape when you get up close to the screen, then this would confirm the problem.

Just tell your friends that it's snowing in Kenya and the snow flakes are getting on the screen and ask the children to try and brush them off. Make the most of it until you can get it fixed, or get another broken one that has a good dmd chip and swap parts.

Firstable hello my name rico i work on tvs sometimes. It looks like you have bad light engine, this kind of diagnose needs to be done by a technician in a shop, Why, becuase later on you see more and more white spots like snow, if you need more help with your tv please feel free to call me at anytime. 602-810-7149 i live in mesa az

light engine is the most likely cause

google software upgrades and try. if not look at Z-Sustain or maybe Y-Sus

You might want to change the white balance or bracket your exposures

Here is a link to the photonet site that may give you some things to try: Photonet