Teletext of teletext from the late 1990s and many broadcasters have ceased broadcast of teletext—CNN in 2006 and the BBC in 2012. In the UK the decline of teletext has been hastened by the introduction of digital television, though an aspect of teletext continues in closed captioning. In other countries the system is still widely used on standard-definition DVB broadcasts. A number of teletext services have been syndicated to web viewers, which mimic the look and feel of broadcast teletext. RSS feeds of news and information from the BBC are presented in Ceefax format in the web viewer at PagesFromCeefax.net. In
Teletext systems mounted a large market trial in Los Angeles in partnership with NBC and Public Broadcasting Service (PBS) Public television. Services premiered simultaneously on station KNXT (now KCBS-TV), KNBC and KCET in Los Angeles. All three services included an array of local news and information services. KCET's service also included service components for use in schools. Later, an official North American standard of teletext, called NABTS (North American Broadcast Teletext Specification) was developed in the early 1980s by Norpak, a Canadian company. NABTS provided improved graphic and text capability over WST, but was quite short-lived. This was mainly due to the