Are you looking to output from the TV or input to the TV.
Connect a bluetooth transmitter to the audio output of the TV. Some will pair with two speakers or two stereo pairs which are seen as one device each pair. Check the TV manual on how to use the audio output.
Connect a bluetooth receiver to the analog input of the TV. Many TVs won't let you select an input without a video signal present so you may need to connect a composite video source too.