A:AnswerYes you can use them for watching tv s long as it has Bluetooth. You might have to Google how to connect your headphones to your particular tv.
A:AnswerOnly if the bluetooth device allows it. The newest bluetooth sometimes allows 2 pairings but most do not. For instance, on our Firestick 4k device we can only use one bluetooth headset at a time. If we buy a dual band bluetooth adapter, then we both could listen through the receiver attached to our TV.
In short, it isn't up to your headphones whether it is possible. It depends on the device you are connecting to.
A:AnswerThey are Bluetooth. It took me seconds to connect to my other devices, I can't imagine it works take much to connect to a Bluetooth enabled TV.
A:AnswerIt totally depends on the Bluetooth function/capability of the TV. Some TV's have a function whereby if the Bluetooth is engaged by a headset, then the normal sound on the TV won't work, so only the person with the headset on can hear the TV.
A:AnswerCan't say for sure, but it might be worth to try them, if it does not work, you can always return them. I added the warranty on ours, for peace of mind.