Having your LCD TV on the wall is the actual way to do it. It's still ok if your LCD TV is on your TV cabinet but the earlier option is much better.
There are few types of wall bracket with various sizes for you to choose from and looking at the video demo like the above i think i could do it with no problem.
Our current LCD TV is not wall mounted but I'm going to have it on the wall very soon. I'm upgrading my TV area and puting my LCD TV on the wall is part of the plan.