My sony tv has blue dots all over it - Sony Grand WEGA KF50WE610 50" Rear Projection HDTV-Ready Television

Seems like a problem with a lot of Sony TV's. Wish i could be of more help, but check this site. Your not alone! Sony LCD Rear Projection TV Problems hope this helps!

thats caused by the optical block which is very expensive to replace. Sony has had alot of issues with the blue dots on the screen its not worth repairing due to the high cost of the optical block

Hi,
This blue dot and hue problem is due to bad lcd in your tv as its Sony dlp tv that has optics block, that is also called light engine, it consists of 3 lcds, filters and lamp to produce an image that projects on front screen.
In this tv, blue lcd became defective and complete light engine will be replaced to get it fixed.
As other expert talking about blue CRT (cathode ray tube) that does not exist in this tv and my fellow expert has no idea about this kind of tv, sorry for that.
Hope this info will help you, let me know if you have additional question.
Thanks.

Sorry but you have a BAD light engine Sony is well know for this part to go bad quick, I think your tv is DLP?

Dot problem in Sony DLP TV caused by bad light engine (optical block)
Its costly part and needs qualified TV tech to fix it.

The blue dots are cause by a defective optical light engine. This parts is quite expensive.
Read the info from this link for more info.

you have a bad optical block

check focus ic

http://www.sony.ca/view/319.htm

If blue dots are present in same location all of the time The panel could be defective.
If TV is still under warranty contact Sony.
Samir