Just purchase TV. Ask for it to update. The tv was manufactured in Nov 2015. After 20 minutes the tv is acting like it is still updating.
How long should you wait because it says not to unplug the TV.
Hi, the software update on the Android TV may take approximately 30 minutes depending on the speed of your Internet connection. For more information, check out the link below.
https://us.en.kb.sony.com/app/answers/detail/a_id/58704/p/61659,95543,95552,95563/c/65,66/kw/Android%20TV%20how%20long%20the%20update%20take
I hope this helps, Dave