Logo
The current and most familiar logo for closed captioning consists of two Cs (for "closed captioned") inside a television screen. It was created by Jack Foley while he was a senior graphic designer at WGBH. The other logo, trademarked by the National Captioning Institute, is that of a simple geometric rendering of a television set merged with the tail of a speech balloon; two such versions exist: one with a tail on the left, the other with a tail on the right.
Read more about this topic: Closed Captioning