OK, I'll look at the owner's manual, jeesh.

Sorry Sounded like trouble so I wanted to direct you toward some help.

I just did this very thing. Initially I was planning to just hang the speaker on the wall but then realized that I'd have to cut a hole in the wall to actually connect it since the speaker terminals are flush with the back of the unit. Also I had already installed an outlet behind the tv for the speaker connections. So I found a "universal" soundbar mount from Sewell for $25 , which did the trick, although not entirely in the way that it was designed to (holes didn't really align for this soundbar). This mounts to the back of the TV.
A couple of images:

Nice!

I would not have thought of that, really good idea. I'm currently finishing my basement and am trying to plan for future mounting of the center channel, surrounds and TV. I have installed a recessed outlet and open single gang cable pass through that will be on the wall behind the TV. I was debated how to run the center channel speaker wire, but I think I'll just plan to run the speaker wire through the cable pass through with the HDMI and down to the center channel, then mount the center channel to the TV like you did. Very cool idea and looks clean!

The additional advantage is that since the speaker is mounted to the TV and the TV wall mount allows for the TV to be slid from left to right for repositioning or centering, the speaker is always centered with respect to the TV.