Ordered something that looked exactly like
these a while back as I was going into a corner.
Holds my 26" fine, their was a similar one with 4 wall screws for heavier units but I cant see it now..
My dad being all engineer n stuff looked it over too and reckons it'd hold a lot more weight then what they say too.
If you dont need the arm then anything like
this is your best bet, as if your worried you could put a fair few anchor screws into the wall.
their are swivel arm versions too..
As long as its not a partition wall with fuck all to screw into lol.
M8 when he did that, he just caught the tv lucky for him.