In early 2011, Vizio announced a new line of 3D HDTVs branded “Theater 3D.” The 3D theater brand is available in several lines including the “essential” (or most economical) E series, the more stylized M series, and the high performance XVT series. The sizes range from 22 to 71 inches and utilize Vizio’s circular polarized 3D filter technology with which battery operated 3D glasses are not required (although 3D eyewear is still necessary for 3D viewing.) Below is the list of the Vizio Theater 3D product line.