The Radio Lab podcast is re-running HV’s “City X” by Jonathan Mitchell, which da Lab rats describe as:

A history of the modern shopping mall through perspectives of people living in a real, yet unnamed, city. Using a sound rich audio mosaic of observations and ruminations, all scored to Muzak, the universal mall experience comes to life, for better or for worse.

“TitleOfMP3″ (25:17 mp3):

Hearing Voices from NPR®:
004 Comedy with a Beat— SUBTITLE
Host— David Ossman of Firesign Theatre. and Otherworld
Airdates— 2008.03.26-2008.04.02

Comedy with a Beat (54:00 mp3):

Master mixes of comedy bits with music beats, from Wally Cox yodeling to Peter Sellers singing while shaving, from Jack Kerouac crooning “Ain’t We Got Fun” to Charles Mingus jazzing up Jean Shepherd’s “The Clown” to comedian Greg Giraldo layered over Lazyboy. “Lenny Bruce Gets Busted” in Jonathan Mitchell’s documentary. And we hear rare and classic bits from host David Ossman’s Firesign Theatre.