The joke's on us in this episode and that's a good thing.  You know James "Murr" Murray as the lead joker on the hit show "Impractical Jokers" on TruTV.   It's described as reverse improv.  The hidden camera show features Murr and three of his childhood best friends pulling pranks .

Murr says, "the guys and I have been friends since we were 13 years old and we never grew up."

Clearly, it's working for them.

But, did you know Murr is also a NY Times best selling author? He writes science fiction. He credits the show for helping him land his book deal and has some great advice for anyone who has that creative itch.