eric idle was a founding python.has been clapping his coconuts for five decades, reminding us to always look on the bright side of life. in his new "sortabiography," eric finds his voice in the '60s cultural revolution and recounts the famous faces and the knights of ni that he met along the way. eric idle took our hari sreenivasan on a laugh down memory lane. >> you've decided on a memoir. why? >> well, our 50th anniversary of monty python is coming up next year, and i thought, "we're going to have to answer questions, so let me see what i can remember and write it down before i forget." >> someone else is gonna write it if you don't. >> oh, that's the other thing, yes. and, i mean, that was -- winston churchill said, "history will be kind to me because i intend to write it." >> [ laughs ] why do you think monty python's lasted 50 years, or, at least, that it's still funny? >> that is, to me, a kind of wonderful mystery. and i think partly it's to do with the fact that it's not rooted in time. the comedy is generic.