Complex sentence: CKVN dropped its news format and returned to a Top 40 format in March 1970; the station was sold to CHUM Western Ltd. (a division of CHUM Limited) on January 1,1973, and regained the CFUN calls on September 30.
Split into simpler sentences: CKVN dropped its news format and returned to a Top 40 format in March 1970. The station was sold to CHUM Western Ltd. (a division of CHUM Limited) on January 1,1973, and regained the CFUN calls on September 30.