It began full-time operations on January 5, 1987.[1][17][3] C-SPAN3, the most recent expansion channel, began full-time operations on January 22, 2001,[18] and shows live/taped public policy and government-related events on weekdays, with historical programming being shown on weeknights and weekends.[4] It has also sometimes served as an overflow channel for live programming conflicts on C-SPAN and C-SPAN2.