A:AnswerThe tv that I purchased from best buy , I got a promotion free itune music for 4 months. I got the key code but I could not redeem it for no reasons. And now, sometime my kids are watching TV, the TV lagging, frozen . I could not turn off or do anything with it. I had to unplug the switch. That’ s my experienced about the TV.
A:AnswerHave you tried turning It back on?
Kidding, try and register the product on your samsung account, from there, request a repair. Of course this is if you haven't had it for more than a year.
A:AnswerIt is not necessary to have an internet WiFi connection in your home to operate the TV. You will need to provide and input source (i.e. cable box, DirecTV, or other) to get a video signal. If you do not have internet/WiFi now, you will not be able to use the "Smart TV" connectivity features built into the unit that allow you to select alternate programming from Netflix, Amazon Prime Video, YouTube and others.