A:AnswerOnce you download apps to it, they will be on there. I use mine on several different tvs (living room, office, outside patio tvs (which are all older tvs).
A:AnswerThe answer to that question is NO. The fire stick and fire remote connect to each other. Not to other fire sticks. The remote that comes with that fire stick is connected to each other. They cant be interchanged.
A:AnswerThat is a TV issue. Use the remote to change the input. You may need to go into the settings menu to do so but very unlikely. Read your owner manual or Google the TV model number and find a copy to look at.
A:AnswerThis question answers itself. Any Fire TV Stick that features remote control for your video and audio devices does exactly that. Any model that is described as not controlling other devices does not. Requires those devices remotes.