WWJ (950 AM, "Newsradio 950") is Detroit, Michigan's only 24-hour all-news radio station. Broadcasting at 950 kHz, the station is owned and operated by CBS Corporation subsidiary CBS Radio. The station first went on the air on August 20, 1920 with the call sign 8MK. It is believed to be the first station to broadcast news reports regularly as well as the first regularly scheduled religious broadcast and play-by-play sports broadcast. WWJ provides "Traffic and Weather on the 8's" which features 24/7 coverage by Detroit Traffic Reporters and AccuWeather forecasts. Although WWJ is the only commercial all news radio station in Michigan, co-owned WWJ-TV is the only CBS Owned-and-operated station without a local news presence.