TCL 4K Android TV Model# 43S434

I have two pairs of bluetooth headphones. I use them successfully on my desktop computer and phone. I can listen to locally downloaded content as well as streaming music and video with no issues and at relatively low volume.

I have now tried using these on my new TV. Antenna TV comes through fine, I can keep the volume at around 30-40. However, if I try to watch streaming channels, like Disney+ or HBOMax, I have to turn the volume up to 80-90 to hear the same level of sound.

There is no difference between antenna TV and streaming with the audio from the TV's own speakers.

Does anyone know what might be causing this? Thanks in advance for any help.