Starz's availability was mainly limited to TCI's systems at launch, debuting with a one-month free preview available to prospective subscribers; it would eventually sign its first major carriage agreement outside the TCI group, through a deal with Continental Cablevision in September 1995. In June 1997, Comcast signed an agreement to carry the network on its Pennsylvania and New Jersey systems to replace Philadelphia-based PRISM after that network shut down that October following the loss of its (and sister network SportsChannel Philadelphia's) sports programming to Comcast SportsNet Philadelphia. The network gained carriage deals with many other major U.S. cable and satellite providers by the early 2000s, particularly with the adoption of digital cable, allowing for providers to add channels that they (even with capacity expansions of up to 60 channels) previously had limited room to carry. Starz was available to an estimated 2.8 million pay television subscribers by 1996, only one million of whom had subscribed to a cable or satellite provider other than TCI.