05-27-2020 07:40 PM
05-28-2020 08:16 AM
Thanks for joining our community, and for being an Insignia customer.
The most important thing to do is to make sure your home theater system is connected to the ARC HDMI port. It will be labeled as HDMI/ARC. The other ports will not support ARC.
The choice between PCM and Dolby Digital will depend on that home theater system. You’ll want to refer to the manual or reach out to the manufacturer to determine which that system is set up for.
Once you have that set, everything should work.