Connecting mac osx laptop to denon avr3300W..no audio


I'm playing streaming video on my mac laptop (USB-C).  I can get the video on my TV (LG 65 OLED) by connecting via HDMI.  But there is no sound.  The sound does play through the laptop speakers.  The TV is connected to a Denon AVR 3300W. 

I would like audio through my home theater system instead of the computer speakers, can one of you geniuses help me?
kala

Showing 1 response by kala

All I see is "internal speakers" and "LG".  I selected "LG" and still no sound.