Nightline, or ABC News Nightline, is a late-night news program that is broadcast by ABC in the United States, and has a franchised formula to other networks and stations elsewhere in the world. Created by Roone Arledge, the program featured Ted Koppel as its main anchor from March 1980 until his retirement from the program in November 2005. Nightline airs weeknights at 12:37 a.m. Eastern Time, after Jimmy Kimmel Live!. It previously ran for 31 minutes, but in 2011, the program was reduced to 25 minutes. When the program moved to 12:37 a.m. ET, the program was expanded to 30 minutes.In 2002, Nightline was ranked 23rd on TV Guide's 50 Greatest TV Shows of All Time.
The intrepid undersea explorer and author circles the globe on his floating laboratory, Calypso, in this occasional series. A pioneer in marine study, the red-capped Frenchman introduced generations of landlubbers to the creatures and mysteries of the sea.
20/20 is an American television newsmagazine that has been broadcast on ABC since June 6, 1978. Created by ABC News executive Roone Arledge, the show was designed similarly to CBS's 60 Minutes but focuses more on human interest stories than international and political subjects. The program's name derives from the "20/20" measurement of visual acuity. The hour-long program has been a staple on Friday evenings for much of the time since it moved to that timeslot from Thursdays in September 1987, though special editions of the program occasionally air on other nights.
A 1949-50 series of 15-minute documentaries demonstrated the array of educational and entertaining subjects the new medium of television could explore.