A:Answer Yes.... if the TV has an analog audio output or optical output, the Yamaha SR-C20 possesses other inputs in addition to the HDMI Arc input.
I am currently using the soundbar with a 4K computer monitor with no audio outputs. I had to get an HDMI audio splitter, which takes an HDMI input, taps the audio to optical output, and passes the video through to the monitor. Most HD TVs will have an optical output you can use.