its shutdown on September 12, 2006; the channel featured a master schedule of programs acquired from the syndication market and some brokered programming to fill time slots not occupied by Fox network programming. The concept behind Foxnet served as the basis for The WB 100+ Station Group (launched in September 1998 as the cable-only feed of The WB) and The CW Plus (the immediate successor of The WB 100+, which launched in September 2006 as a cable-only/digital multicast feed of The CW), which both allow the customization of localized branding (which Foxnet did not allow its cable partners to do) in addition to allowing affiliates to sell local advertising. Differences between Fox and the "Big Three" networks Network programming Fox's programming schedule differs from the "Big Three" networks in several significant ways: the network airs its prime time programming for only two hours on Monday through Saturday evenings and three hours on Sundays, compared to the three hours on Monday through Saturdays (from 8:00 to 11:00 p.m.) and four hours on Sunday nights (from 7:00 to 11:00 p.m. Eastern and Pacific Time) programmed by the three longer-established networks, ABC, CBS and NBC. This scheduling is termed as "common prime", referring to the programming of prime time content across all of the conventional broadcast networks during the early- and mid-evening hours, while the 10:00 p.m. (Eastern) hour is programmed only by the three older networks. Fox has traditionally avoided programming the 10:00 p.m. hour, choosing to cede the time period to its local affiliates for them to program, many of which air local newscasts during that hour; however, some exceptions do exist for select special film presentations, which by virtue of their running time (depending on whether the film's original length, combined with commercial breaks that would be included in the television cut, would exceed a traditional two-hour broadcast timeslot) must spill over into the 10:00 p.m. hour, and overruns from live sports telecasts scheduled to air during prime time. However, the network did regularly schedule programming in the 10:00 p.m. hour on Sunday nights from September 1989 to September 1993 (when that specific time period was turned back over to its affiliates), although it never added programming at that hour on any other night. Fox's original reason for the reduced number of prime time hours was to avoid fulfilling FCC requirements in effect at the time to be considered a