A comparison of the aspect ratios of standard-definition (SDTV) and high-definition (HDTV) picture tubes.

ASPECT • AUDIOVISUAL • BROADCASTING • CIENCIA • COLOR • COLOUR • COMMUNICATIONS • DEFINITION • DEVICE • DIAGRAM • DIMENSION • DIMENSIONS • DISPLAY • E-COMMERCE • ELECTRONIC COMMERCE • ELECTRONIC SYSTEM • ELECTRONICALLY • ELECTRONICS • FIGURE • FLUSH • FULL-SCREEN • HDTV • HI-DEF • HIGH • ILLUSTRATION • ILLUSTRATIONS • ILUSTRATION • PICTURE • PROJECTION • RATIO • RECEIVER • RECEPTION • SAFE ACTION AREA • SAFE TITLE AREA • SCIENCE • SCIENCES • SCREEN • SDTV • STANDARD • TECHNOLOGICAL • TECHNOLOGY • TELECOMMUNICATIONS • TELEVISION (MEDIA) • TELEVISION SET = TV SET = TELLY • TELEVISION SET • TELEVISION • TELLY • TRANSMISSION • TRANSMITTED • TUBE • TV SET • TV • VERTICAL LINES • VERTICAL • WIDE-SCREEN