Premiered: March 24, 1980, on ABC
Premise: An incisive late-night news series that analyzes the day's top stories with interviews and reports. It occasionally features program-length documentaries, weeklong series and town-hall forums. The program began in November 1979 as 'The Iran Crisis: America Held Hostage', with Frank Reynolds anchoring. Ted Koppel took over shortly thereafter and it expanded its scope (and took the name 'Nightline') on March 24, 1980. Koppel served as anchor until 2005, when he was replaced by a troika of hosts.