13. 'StarTalk Radio'
The world has made an unlikely, and unexpectedly comedic, star of Neil deGrasse Tyson. Sometimes, he's fussy and fastidious, talking smack about sci-fi films that fail to adhere to the rules of science fact; other times, he's the dour doomsayer, imagining an earth trashed by asteroids or a human sucked through a black hole with a dark sort of glee. For each moment that gets too heavy or too dry, he's got cohosts who tell jokes for a living — most often the giggly, guileless Eugene Mirman — to ask questions about the subject matter at hand and play comic relief as necessary. The learning and laughing go hand-in-hand.