WRBU, virtual channel 46 (UHF digital channel 47), is a MyNetworkTV-affiliated television station serving St. Louis, Missouri, United States that is licensed to East St. Louis, Illinois. It is the flagship station of owner Roberts Broadcasting. WRBU maintains studio facilities located on North Kingshighway Boulevard on the northwest side of St. Louis, and its transmitter is located near House Springs. It is the only major network affiliate in the St. Louis area that is licensed to a city on the Illinois side of the market.