Some channels are slow to load or unable to play, you can try it on your PC

UDC-TV is an educational access television station based in Washington, D.C., the federal capital of the United States. It is owned and operated by the University of the District of Columbia. UDC-TV can be viewed anywhere within the UDC’s campus, as well as any home or facility with cable TV service within the District of Columbia, including all hotels, federal and Congressional offices, as well as the White House.