高清（晰度）电视；高分辨率电视
HDTV is a digital television system that gives a much clearer picture than traditional television systems. HDTV is an abbreviation for (缩略=) 'high definition television'.
例句
HDTV is especially useful if there are a lot of special effects.
有很多特效的时候，高清电视就格外有用了。