Purchased a Sony 4G 2016 TV on November 20 2016 at Best Buy. Three days after setting up the TV it started having all sorts of problems, shutting off by itself, or blaster not working, running apps slow, sometimes it would have a locked screen. After calling Sony technical support 65 times in 3 months, getting the phone hung up on me 7 times the TV finally had a locked screen. Sony level 2 tech support finally had to send a service man to the house to replace the logic board. Sony took 10 days to get the part and another 3 day to schedule a home repair. After installing a new logic board service man had to load new software and forgot his computer? I agreed to let him use my computer on a memory stick 1.2 g.