He started out writing jokes for Borscht Belt comedians for $7 a piece. Then Lorne Michaels hired Alan Zweibel to be a writer on the first season of Saturday Night Live. That’s where he met Gilda Radner and they created memorable characters like Emily Litella and health reporter Roseanne Roseannadanna who often had disgusting things to say. He went on to co-create It’s Garry Shandling’s Show and collaborate with Billy Crystal on the award-winning 700 Sundays. I talk with Alan Zweibel about his new book Laugh Lines and what it takes to be funny.