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. 1998: The Series 1996 $20 note was completely redesigned for the first time since 1929 to further deter counterfeiting; A larger, off-center portrait of Jackson was used and the view of the White House on the reverse of the note was changed from the south portico to the north. 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. 20/20 brings you hard-hitting investigative reports, newsmaker interviews and compelling human interest and feature stories. 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. Watch the official 20/20 online at ABC.com. Get exclusive videos, blogs, photos, cast bios, free episodes 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 polyhedron of 20 faces is an icosahedron, one of the five Platonic solids. It is a convex regular polyhedron composed of twenty triangular faces, with five meeting at each of the twelve vertices. 20/20: Created by Roone Arledge. With David Muir, Amy Robach, Deborah Roberts, Elizabeth Vargas. ABC's original hour-long news magazine. Learn Number Twenty 20 in English & Counting, Math by Endless Alphabet Kids Educational Video Top Trending 14.8K subscribers Subscribe.