Name: David Letterman, three decades ago
Uploaded: Thu Feb 02 2012 00:00:00 GMT+0000 (UTC)
Duration: 54 s
Description: The host of ‘Late Night with David Letterman’ is celebrating his 30 year anniversary on the CBS show, but he started here at NBC. ‘Nightly News’ found this footage in NBC’s archives, from 1978. NBC’s Brian Williams reports.

Feb. 2, 201200:54