Starz operates a video-on-demand (VOD) television service called Starz On Demand, which is available at no additional charge to new and existing Starz subscribers. The service was launched on September 19, 2001, debuting on Adelphia Communications' Cleveland, Ohio system. The service offers early premieres of feature films that are scheduled to premiere on Starz, up to one month prior to their pay cable debut on the primary linear channel. Starz on Demand's rotating program selection incorporates selected new titles that are added each Friday, and existing program titles held over from the previous one to two weeks. The Starz On Demand name was also used for an online broadband streaming movie service operated by Starz and RealNetworks from 2003 to 2004. In March 2011, Starz On Demand launched a third VOD service (in addition to its standard-definition and high-definition VOD services), offering movies presented in 3D to customers of Comcast and Verizon FiOS at no additional charge.