There was an interesting discussion about manufacturers as well (informally):
Panasonic - Great Engineers. Committed to improving technology. But the higher management isn't really interested in TVs, and so the quality of components has taken a hit in recent years. Panasonic wants to get out of TV business, and concentrate on appliances and hair dryers.
Sony - Great at listening to feedback and making improvements, but increasingly, investment into R&D is dwindling. They didn't know their TVs were amongst the best for gaming, until a couple of months ago!
Samsung - Have some good Engineers. Big R&D investment but doesn't always listen to feedback. They know their TVs will sell regardless. Not interested in plasma.
LG - Is only competing with Samsung. Doesn't know what constitutes a good TV. Does not provide much calibration control, and doesn't listen to feedback.