It's not like these are even particularly technical terms, though. Anyone who has shopped for a TV in the last five years should know what "1080" and "720" are,

It's not like these are even particularly technical terms, though. Anyone who has shopped for a TV in the last five years should know what "1080" and "720" are, even if they don't quite grok the "i" and the "p". Not everybody understands what HDTV is, but... I'd say a majority of the working age male population does. I gotta admit that they fooled me; I saw this new Nook advertised at B&N the other day, and was impressed to note that it was capable of full HD video. It didn't occur to me that that might be a total lie.