By Are you a Friends nut? Have you spent far too many evenings rewatching old episodes? Do you know exactly which phenomenon scares the bejeezus out of Chandler?
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Even so, we reckon a few of the factoids we've thrown together in our new video might surprise you.
Which two of the Central Park gang weren't supposed to be main characters?
Which pop hit was supposed to be the Friends theme song before The Rembrandts' one-hit wonder?
Which A-list Hollywood actor appeared on the show and wasn't paid a dime?
... And who really owned Joey's big white ceramic dog, Pat?
There's only one way to find out...
