The updated one-colour version of the gem/pizza logo, created by Hubert Tison and Robert Innes, was introduced on January 1, 1986, and with it was introduced a new series of computer graphic-generated television idents for CBC and Radio-Canada. These idents consisted of different background colours corresponding to the time of day behind a translucent CBC gem logo, accompanied by different arrangements of the CBC's new, synthesized five-note jingle. The logo was changed to one colour, generally dark blue on white, or white on dark blue, in 1986. Print ads and most television promos, however, have always used a single-colour version of this logo since 1974.