How do you remove this type of TV bracket? (separating the TV-mounted rails from the wall mounted bracket) For context, this bracket is likely 15+ years old. It doesn't appear to have pull tabs on the vertical bars. We've tried lifting the tv and tilting, but it doesn't work. The locking mechanism seems to have something to do with the flat bar that runs horizontally with the two large holes in it closest to the camera, however we haven't been able to figure out how to get that to move as well.
[Resolved] There were two bars that had to be pulled out to the side and up. It required prying with hand-tools to get it to move. Another issue with this setup is the TV was mounted inside/flush to wall, making it more difficult. (see below picture with TV removed)