“Is a hippopotamus a hippopotamus, or just a really cool Opotamus?” That’s not a joke that most stand-up comics would make, but it’s the kind of humor that’s instantly synonymous with the late, great ...

Twenty years ago, the comedy world was stunned by the death of beloved performer Mitch Hedberg, who was still on the rise not long after having released what would become his best-selling album. Known ...