 In 1975, the CRC gave a contract to Norpak to develop an interactive graphics terminal that could decode the instructions and display them on a colour display, which was successfully up and running by 1977.Against the background of the developments in Europe, CRC was able to persuade the Canadian government to develop the system into a fully-fledged service.In August 1978 the Canadian Department of Communications publicly launched it as Telidon, a "second generation" videotex/teletext service, and committed to a four-year development plan to encourage rollout.