In 1982, Prince William was born, ET: The Extra Terrestrial charmed children everywhere, and Time Magazine’s Man of the Year was a computer. But can glowing fingers and the future King of England compare to the premiere of Late Night with David Letterman? The show, which began in 1982 on NBC, continued until 1993. That’s when Dave, Paul, and the World’s Most Dangerous Band moved to CBS for the Late Show with David Letterman. Some 30 years later, we’re celebrating Dave’s dominance over late night, now besting The Tonight Show and Jay Leno’s chin in the ratings.

The “hugely talented” gene just tends to run in some families. Check out some of your favorite celebrity siblings, both past and present, and see what they’ve been up to on and off the screen.