David Letterman says goodnight to late night

Aired: 5/19/2015 | 0:07:14 | Clip
In the fall, Stephen Colbert will take over the TV time slot that has belonged to David Letterman for 22 years. The host of CBS' Late Night with David Letterman influenced generations of comedians and brought a new voice to late night. He was silly with an edge, known for his engaged, and occasionally confrontational interviewing style. Jeffrey Brown looks back at Letterman’s career and legacy.