Richard Johnston, musical devices appraiser for 'Antiques Roadshow' retains a 1955 Les Paul guitar brought for appraisal by Dan Sillaman (white shirt in background). Sillaman and his guitar were chosen to be filmed for a later airing of the demonstrate. Ben Winkler speaks to the crowd who arrived present their assistance for PBS, urging Congress not to defund CPB, in close proximity to the Capitol on March 21, 2017, in Washington, D.C.