In September 1966, network colour transmission started, with local colour facilities for program and commercial production being installed in 1970, and a mobile colour television unit became operational in 1975. More rebroadcasting stations were added at Lac La Biche (1968), Grande Prairie and Peace River (1970), Rocky Mountain House and Crimson Lake (1971), Red Deer (1973) and Slave Lake, Grouard and Lougheed (1979), Jasper (1992) and Athabasca (1993). In 1974, CFRN-TV moved its transmitter to a new site with a tower, operating at 250,000 watts.