First you need a USB port on the tv. Do you have that?
if you don’t have that, you can hook a sound bar with Bluetooth capability to the tv. Then hook into the sound bar.
you could depending on the tv also hook a Dolby set of surround sound to the tv and then hook through that if it has a USB port with a transmitter.
verizon is not required to instruct a customer on the use of devices not provided with their service. Not even cable will do that.
Use google to look up ways to use a Bluetooth Wireless speaker/headphones.
i know Roku devices have the ability to be set up with wireless head sets.