A:AnswerIt depends on your TV. If it can detect for bluetooth devices, more than likely, yes. Mine get located on my TV, though I don't ever need to pair them.
A:AnswerYes kind of, mine link to my phone and I control everything through my Apple Watch. Don’t know if you can use the Apple Watch as a stand alone devise without the phone.
A:AnswerIf you're planning on using one earbud at a time then it would have to be the right earbud since the left one only connects if the right one is connected. If you want to use the left earbud alone, then you'd have to take the right earbud out of the case and leave it in your pocket but this can also lead to having a poor connection or potentially losing the earbud if you're not careful.