CBS was established in 1928, when founder William Paley purchased 16 independent radio stations and christened them the Columbia Broadcast System. The Network has the #1 drama/scripted program, NCIS; #1 sitcom, THE BIG BANG THEORY; #1 newsmagazine, 60 MINUTES; and #1 daytime drama, THE YOUNG AND THE RESTLESS. Its programming arms include CBS Entertainment, CBS News and CBS Sports.