Before the video switches to WPIX at about 22 seconds in, there's a documentary in which there's a segment about former veep Barkley. This would be about 5-6 seconds long (approximately). I'm not sure if that's James Garner narrating and I'm not sure if the channel was Thirteen/WNET.
http://www.youtube.com/watch?v=NCY3n6J8X3k
Think you can solve the brief documentary mystery?
http://www.youtube.com/watch?v=NCY3n6J8X3k
Think you can solve the brief documentary mystery?