The program's name derives from the 20/20 measurement of visual acuity. The two-hour program has been airing at 9:00 p.m ET 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. In some countries, the number 20 is used as an index in measuring visual acuity. 20/20 indicates normal vision at 20 feet (6.1 m), although it is commonly used to mean perfect vision in countries using the Imperial system. 20/20: Created by Roone Arledge. With David Muir, Amy Robach, Deborah Roberts, Elizabeth Vargas. ABC's original hour-long news magazine. Watch 20/20 2-hour event specials, anchored by David Muir and Deborah Roberts, Friday nights on ABC. Stream full episodes on Hulu. 20/20 brings you hard-hitting investigative reports, newsmaker interviews and compelling human interest and feature stories. 20/20 Official Playlist - Season 47 (2024-2025) l ABC News by ABC News • Playlist • 19 videos • 8,910 views 20/20 full episode guide offers a synopsis for every episode in case you missed a show. Browse the list of episode titles to find summary recap you need to get caught up. A staple of primetime television on Friday nights for over 3 decades, 20/20 has remained a leader in American TV news magazines broadcasting on ABC. Watch the official 20/20 online at ABC.com. Get exclusive videos, blogs, photos, cast bios, free episodes ABC's 20/20 is the prime time news magazine program featuring David Muir. From newsmaker interviews, hard-hitting investigative reports, exclusives, compelling features and medical mysteries.