noun
Extended Definition Television; EDTV
A wasei-eigo term for a television system with improved picture quality, positioned between standard-definition and high-definition. Used primarily in technical or historical contexts.
wasei-eigo (Japanese-coined English), from clear vision
クリアビジョンは、ハイビジョンが普及する前の高画質放送方式です。
Clear Vision was a high-quality broadcasting system before HDTV became widespread.