My new boyfriend, Neil deGrasse Tyson, always has a comedian as co-host on his podcast. I don't know why, since he is usually funny enough on his own.
Case in point - this happened during a live taping of the podcast where he was defining a Googol as 1 followed by 100 zeros.
Neil: So, if you have a 1 followed by a Googol of zeros you have -
Voice from the Crowd: A Googolplex!
Neil: Nerd! We found the nerd! Get him!