Today is, Wednesday, September 21, 2016 and I just wanted to thank everyone for this forum. Like everyone else, those white/black dots were beginning to multiply like crazy. I came across this forum in Google and I'm so glad I did! Turns out calling Mitsubishi was the best thing. Like the others, I was going to purchase a brand new TV because mine is 9 years old, but instead because this was a defect in the chip (due to the manufacturing year (2009)), Mitsubishi paid for the part and all I needed to pay was for the labor - so yes, $200 + tax (which was the negotiated rate according to Mitsubishi). The service was fast and the customer service reps for Mitsubishi were very courteous as well as the repairman that fixed my TV.
So I just wanted to add, if not for this forum, I probably would have bought a new TV. Thank you very much to all!!