A:AnswerYou do not need a Fire TV Stick because the TV has the Fire OS already built-in.
This TV is HD (720p resolution) you can watch broadcast TV or your favorite content in high definition.
A:AnswerYes. the toshiba tv can be mounted on the wall. You will need to buy a wall mount kit, and install it on the wall. Make sure it is attached to the wall studs.
A:AnswerYou need a free Amazon account to enjoy the Full Experience.
You need a subscription to watch Prime Video, Netflix or Hulu.
There are some apps that offer free Movies and TV Shows.
A:AnswerYou can use the Amazon account that has the Prime subscription to setup the TV.
If needed, you can Deregister your account by going to Settings > My Account.