You have three options:

1) ARC (Audio Return Channel, look it up in your TV's manual)
2) Optical out (toslink) from TV to AVR (this is my preference because ARC can be flaky)
3) Buy an outboard box for streaming services (Nvidia Shield, Roku, Amazon Fire TV, etc.) (best option because internal TV apps can be flaky as well)

 

the Samsung Quik Connect Box provided with the TV has a "Optical Digital Audio Out" plug. Is this what you refer to as "toslink" in your 2nd option you listed?

Thanks.

 

Yes. That's exactly what Alan means. The common consumer optical interLINK connection was originally introduced by TOShiba, hence why some refer to it by its alternate name: TOSLINK.

Just a heads up: On some TVs there can be annoying limitations as to what the optical out can carry. This was especially true in the early years when some manufacturers allowed the consumer to conduct digital sound away from the TV only if it was derived from the internal, over-the-air (OTA) tuner. Others allowed for 2ch sound but not 5.1. Incoming sources such as DVD and Blu-ray over HDMI were not accommodated or with limitations. Things got better though around 2014, however I thought to mention it if you do run into any issues.