Hi @Neeha Siddiqi
Here’s a link to the [http://downloadcenter.samsung.com/content/UM/201811/20181106112716991/ENG_US_KM2ATSCN-3.0.3.pdf|user guide] for your model. Scroll to p.108 to view how to connect Bluetooth devices for the hearing impaired, i.e. BT headphones.
Be aware of the disclaimer in the manual:
''“This function may not be supported depending on the model or geographical area.”'' so your TV may not have BT capability.
To verify what your model capabilities are go online and search for ''un65nu6950 user manual'' for your particular location (country)