CJBK is a Canadian radio station, broadcasting in London, Ontario at 1290 kHz. The station, owned by Astral Media, has an effective radiated power of 10,000 watts, as a class B station. The station airs a news, talk and sports format. It broadcasts all home and away games of the London Knights hockey team as well as the NHL's Detroit Red Wings, the NFL's Detroit Lions, and the MLB's Detroit Tigers teams. Minor co-channel interference is common on CJBK at night from WHIO in Dayton, Ohio, which also broadcasts on 1290 kHz.