HBO

1972-1975
For the first four years of its existence, HBO identified itself with a still image of its original logo, a ticket stub, and the channel's full name Home Box Office, surrounded by a minimalist marquee light design.

1975–1981
HBO's logo has looked essentially the same since May 1, 1975, utilizing a simple wordmark with a circle inside the "O", representing a camera lens. This version differs, however, in that it had the "O" overlapping the "B". In network IDs, the logo was often accompanied by three lines colored red, yellow, and blue, below or next to it. This logo and the next one below were both designed by Betty Brugger, then the art director for Time-Life.

1980–present
In April 1980, the 1975 logo was revised, with the "O" moved off to the right of the "B", but still contacting at two points. This logo was initially used in tandem with the previous version until July 1981. A major reason for this change was that the partially obscured "B" of the previous logo gave many the impression it was an "E". Also, the letters in the logo were trimmed to be slightly less bold, and the spaces between letters and around the circle in the center of the "O" were widened.