A television display technology that enables a three-dimensional effect, so that viewers perceive that an image has depth as well as height and width, similarly to objects in the real world. The 3-D effect is formally known as stereopsis. Typically, specialized glasses are required for the 3-D effect. However, some manufacturers have released auto 3-D (formally known as auto stereoscopic) TVs with screen-based technologies that don’t require users to wear 3-D glasses. 3: 2 pulldown – another name for telecine or cinema 3: 2 pulldown. ATSC (Advanced Television Systems Committee) is a standards organization that developed standards for digital television (DTV) that specify technologies for the transport, format, compression, and transmission of DTV in the U.S. ATSC standards include HDTV and SDTV