A few month ago my 50” Samsung DLP TV developed tiny star-like spots on the screen. After calling the Samsung customer care center, I was impressed that they dispatched a tech to my home who replaced free of charge the DMD chip, a component smaller than a stick of Dentyne gum that projects the image onto the LED screen. I paid $1,200 for that TV on sale over five years ago but now that I see these sale prices on sets far superior to mine, I can see how Samsung can afford to provide such fine customer service.
The problem seems to stem from a design flaw that allows water vapor into the chip, creating the white dot effect.
Getting credit from TI takes a bit but they eventually pay up.
Kudos to Samsung for providing on site service on a 5 year old set. It was certainly state of the art back then.
I would not expect such stellar service from lesser brands ...