Late Show with David Letterman - Season 19 Episode 152
From "The Big Bang Theory," actor Simon Helberg; actor/comic Ricky Gervais; musical guest Ty Segall.
- शैली: Talk, Comedy
- स्टूडियो: CBS
- कीवर्ड: late-night show
- कास्ट: David Letterman, Paul Shaffer, Alan Kalter