Test for the colour transmissions began in 1971 with the coverage of that year's Pan American Games held in Cali. In October 1973, when programadora Cenpro Televisión made a colour broadcast during an education seminar with Japanese-made equipment. Regular colour transmissions since Saturday, December 1, 1979. Full-time colour transmissions since 1982. Date of issue: 4 March 1980 Quantity: 500,000