I did the same with my Spectre TV with built in DVD player, but I got a very noticeable hum, so I hooked it up to my satellite receiver, which worked without the hum, but when I switch to my streaming stick, the audio from my satellite receiver was still what I got. I ended up using an optical cable, just make sure you line the plugs up exactly with the matching plugs on your TV and soundbar. I had trouble matching the optical cable end with the plug on the soundbar. Suspected something was wrong with the soundbar, but the gentleman at the door of my local Best Buy got it to match up.