I'm looking for a new HDTV, mainly to be used for gaming. Every fixed pixel HDTV I've ever gamed on save for one old HDMI/DVI-less 27in Westinghouse LCD has suffered from a noticeable (unacceptable) amount of input lag. Is there a surefire way to know a set doesn't have this issue aside from sitting down and playing on it? Even better, does anyone have any first hand experiences with lag-less HDTVs? Thanks.