Optical audio output will work fine.
Check the TV manual on how to turn it on. You may have to turn the TV speakers off too.
You may also have to assign the optical connection to an input in the receiver input menu.
No HDMI, looks like three or four optical but other than that, lots of holes for jacks. It's a Dennon ACR 1082. Can optical work or should I purchase a new receiver? I also have a JBL center and Energy Speakers attached to this receiver.
Optical audio output will work fine.
Check the TV manual on how to turn it on. You may have to turn the TV speakers off too.
You may also have to assign the optical connection to an input in the receiver input menu.