ExtraVision was a teletext service created and operated by the American television network CBS in the early to mid-1980s.

[5][8][9][10] The full ExtraVision service began in April 1983[5][11][12] on CBS affiliate WBTV in Charlotte, NC,[2][13] and went nationwide in 1984.

One issue was that, due to CBS' heavy emphasis on the ExtraVision service, it did not offer line 21 closed-captioning for the hearing impaired, unlike ABC, NBC or PBS (ABC never offered teletext services, while only certain PBS stations, including the aforementioned KCET and WGBH, experimented with teletext).

Some believed that CBS' opposition to line-21 services was so large, they even wanted to strip captioning from commercials to be run during programming.

While the NAD's Phil Bravin, chairman of the NAD's newly-formed TV Access Committee, was able to persuade NBC to resume captioning, he continued to meet with resistance by CBS; after an unproductive meeting with then-head of CBS affiliate relations, Tony Malara, Bravin promised to "see you on the streets of America".