What you are seeing is most likely the games fault, not the TV. I've played most of the games you listed on my LG 50PK550 (Killzone 2 and 3, Heavy Rain, Dead Space 2 and also RE5 which you showed in the video), and while it is noticeable if I look for it, I typically am more focused on the game. Story is more important to me than graphics, and I can deal with things like lack of V-Sync or low textures if I find the game appealing enough.
This is likely a limitation of technology. If you find it really bothersome, you may want to consider going to PC gaming. You aren't going to find 60fps games becoming the norm on the current gen consoles. There hasn't really been talk of next gen consoles coming out in the near future. Probably not until 2013 at the earliest.
While it may be an issue to you, you're overreacting a bit in my opinion. It does not make the games unplayable for the majority of people (on AVS included). I would think DLP rainbows or ghosting in stereoscopic 3D games to more of a deterrent than a minor amount of judder.