The Canadian Broadcasting Corporation (Société Radio-Canada) is the Canadian public broadcaster for both radio and television with its English-language and French-language service units known as CBC and Radio-Canada.
In 1958 CBC's television signal was extended from coast to coast. Colour television broadcasts commenced in mid-1966 with a full-colour service beginning in 1974. To accompany the introduction of colour broadcasts, they introduced the ‘butterfly’, a logo to mark the network's transition from black-and-white to colour television, in a similar manner as NBC’s peacock logo. It was used at the beginning of programs that were broadcast in colour and was used until all CBC television programs had made the switch to colour.
