The CW HD
The CW's master feed is transmitted in 1080i high definition, with all transmission of the network moving to the format in June 2012. As of March 2012 when America's Next Top Model became the final program to convert to the format, all prime time programming, plus Vortexx, is broadcast in HD, with the daytime Bill Cunningham Show carried in enhanced definition widescreen due to producer preference. Non-HD Vortexx programming features stylized pillarboxing and windowboxing.
The network is available in HD on most of their full-power affiliates, while availability on those affiliates with subchannel or cable-exclusive affiliations varies by market; in some of these cases a standard definition signal is only available terrestrially. In those cases, the station offers an exclusive high definition feed to cable and satellite operators, while a 16:9 widescreen broadcast in 480i is presented on some affiliates terrestrially to meet minimum requirements for presentation. Since June 2012, the CW Plus feed has also transmitted in HD, and the network has asked those affiliates to carry it in HD wherever possible.
Read more about this topic: The CW Television Network