I actually contacted Samsung. In spite of the criticisms here, they were very helpful. Did an online chat. My software was out of date. Usually the TV automatically updates. It didn't. The only weird thing was that they wanted me to find a PC, download software, put on usb drive, and transfer to TV. I don't use a PC and don't know anyone who does. All Macs. I said Why can't I download to my TV. They said, Oh, well you can and told me the menu to go to. Duuuuh. But it now works perfectly. No sign in at all. (I had previously done the activation using the numbers.)
