New Vizio purchased 11/7/8, t.v. kept shutting off. Bad Power Supply. Already purchased 4yr extended warranty. Returned unit back to Wal-Mart 11/22/8. Run around with Customer Service about getting warranty refund back. !st told I wasn't in system. Then given 2 bad phone numbers to call. Finally got a correct phone #, and was given a bad e-mail address and mailing address to properly cancel extended warranty. I feel this is a fraudulent way to scam customers, because you only have 30days to cancel a warranty for a full refund. Sending cancellation request via certified mail. Should have viewed previous complaints before buying this junk. At least I found out in time to return back to store and purchase a more reliable brand. STAY AWAY FROM VIZIO...IT'S JUNK!!! AND YOU'LL GET A VERY FRUSTRATING RUNAROUND FROM CUSTOMER SERVICE.