>> wertheim: ...emmy winner for outstanding comedy series, three years running. >> david mandel: this upper west side. >> wertheim: what made you want to join the "lampoon"? >> mandel: the building. you kind of, you can't help but notice it. you know, you see a lot of other organizations, you go to a lot of other meetings. and there's this one place that happens to have a castle. it definitely hits you. >> wertheim: it's hard to overstate the importance of the castle. built in 1909 in a style described as "mock-flemish," whatever that means, the exterior almost winks at you, foreshadowing farce. and inside, the great hall. site of "lampoon" parties so legendary, movies have been made about them. >> ( bleep ) party. t great hall, alg with most of the castle, is strictly off limits to non-members. our cameras were not permitted anywhere but the library, no matter how many times we asked. we did, however, track down the unofficial godfather of the place. jim downey, class of '74, cuts a mythical figure within harvard "lampoon" circles. >> jim downey: the centerfold. >> wertheim: the guy