Hi @ Harvey Himberg,
Is the TV model a HU6900 or a NU6900?
A HU6900 model does have BT capability. Here’s a link to the [https://www.samsung.com/uk/support/model/UE40HU6900UXXU/|user manual]. It explains how to connect the BT devices
A NU6900 ''may'' ''or may not'' have BT capability, it depends on where it is sold. Here’s a link to the [https://www.samsung.com/us/support/owners/product/2018-uhd-smart-tv-nu6900|user manual]. It explains how to connect the BT devices, if your particular model does have it.
If the BT settings are not in the TV, here’s a [https://www.youtube.com/watch?v=LXv0OZp6aXk|video] that shows how to connect 2 x BT headphones to a BT dongle connected to the TV’s audio out RCA connectors.
The BT transmitter dongle in the video, and is shown linked underneath to Amazon, is currently unavailable from them, so here’s a direct [https://avantree.com/au/privaiii-bluetooth-auido-transmitter-for-tv?___store=au&___from_store=default|link] to the supplier.
There may be other alternative BT transmitters available, I didn’t check.
Most BT transmitters that have BT Ver. 4.1 or higher support multiple connections and you are fortunate that your headset model supports ''multipoint,'' which means that they can both connect to the same BT source at the same time. A lot of BT headsets don’t have this so only the one headset will be able to connect to the BT source at any one time
You will need to alter the TV’s audio settings to direct the audio to the TV’s external RCA audio ports, away from the internal TV speakers.