William Sanford Nye got his start doing sketch comedy, made his name as Bill Nye the Science Guy in children’s television and now runs an organization dedicated to sending spacecraft to other planets. Two years ago, he added the title of bicoastal New Yorker, dividing his time between Los Angeles and Manhattan’s Upper West Side, where he is finishing work on a book called “Everything All at Once: How Nerds Solve Problems” and a series of children’s books called “Jack and the Geniuses.” Among his favorite things about life in New York: the subway system. “Are you kidding me?” Mr. Nye, 60, said. “It’s amazing. Carries a billion people a year. For $2.75 you can go anywhere. Come on, people.”

THE AGING GUY I get up in time to watch “Meet the Press.” There’s three ways to know that you’re old. When I sit on my porch in Studio City in Los Angeles, I yell at cars to slow down. Slow down! Then, it’s not uncommon to be out there in shorts pulling weeds with one hand and a cup of coffee in the other hand, talking to the neighbors about how hot it’s going to be. And the third thing is when you decide that watching “Meet the Press” is a valuable use of your time.