[masraum]

Based on the manual for the TV that you provided earlier, using the optical cable will require you to use the sound bar's remote and using the optical cable will only work when you are getting a 5.1 broadcast.

I would think that the only way that you'd be able to control the volume with the TV volume would be if you had some other sort of audio out whether it be RCA or headphone or maybe HDMI or wiselink. It doesn't look like you've got ANY outputs on that TV other than the Optical. Everything else in your photo looks like it's input.

But, I would think that the Cox remote should be programmable for the sound bar which I think the other guys have mentioned. I think that Craigster looked at the manual and found the code for the remote for you.