RMV->) Re: "Getting a Clear Picture of HDTV" (February, page 42). Any article that gets people thinking about the facts will benefit the industry, but it's clear to me how cloudy people's understanding of the terms high definition and HDTV is. Medical imaging companies have done a good job of making customers associate the term HD with HDTV. Consumers associate the term with what they're experiencing at home watching their TV. Unfortunately, although a successful marketing ploy, it is purely misleading.