Remember that time Stephen Hawking, Albert Einstein, and Isaac Newton sat down together for a poker game with an android on Star Trek? The renowned physicist died Wednesday, leaving behind a staggering legacy—including his 1988 book, A Brief History of Time, which made cosmology accessible to the masses. But he also leaves behind a delightful collection of nerdy TV appearances—a series of cameos and guest spots that, above all, captured the brilliant scientist’s sharp sense of humor. His appearance on Star Trek: The Next Generation was his first, and it remains historic.

To this day, Hawking is the only person to play himself in the Star Trek universe. In 1993’s Season 6 finale, “Descent,” the scientist sits down with Data, Einstein, and Newton for a quick round of cards—which Hawking wins by bluffing Einstein. (Like Einstein and Newton, he is rendered as a hologram.) Hawking, a science-fiction fan and a Trekkie in real life, would later warn us that artificial intelligence might someday kill us all—so it’s safe to guess that was one interesting poker game.

Hawking also logged several guest appearances on The Simpsons, most notably in the Season 10 episode “They Saved Lisa’s Brain.” There, Lisa joins the Springfield chapter of Mensa, which ends up taking over the city after Mayor Quimby flees. It’s Hawking, who’s smarter than all the Mensa members, who informs the group that their utopia “is more of a fruitopia.”

“Sometimes the smartest of us can be the most childish,” the physicist tells a discouraged Lisa. But when she asks if that truth can be applied to him, Hawking responds, “No. Not me. Never.”