http://shmups.system11.org/viewtopic.php?f=6&t=42092

LCD is NOT the right choice for SNES and old consoles, too many issues you're likely to run into visually (no scanlines, wrong aspect ratio) - and a "good" gaming TV is going to have up to 2 frames of lag!

Instead I would take a look around for a small-ish CRT television (or even a pro Trinitron monitor if you have the money) and get an LCD screen for your "daily" viewing and HD consoles.

Interestingly I have read that there may be some further lag issues with many PS3 games and non-720p televisions, as the TV will have to upscale from 720p and this is a well-known source of lag.