In Entertainment Weekly's The First Decade : A Special Collector's Issue they have a one page article on Friends and they listed some of the top 6 things we didn't know about the show. One of them some of you may know but the rest I don't think you do.
Here they are:
1. The sitcom was initially pitched to Fox. When the network balked, NBC bought it.
2. Youth isn't always king. Worried the series might only appeal to a young demographic, NBC wanted to cast a coffeehouse owner as a mentor to the Friends. Producers Marta Kauffman, David Crane, and Kevin S. Bright nixed the idea.
3. Tea Leoni and Jami Gertz were approached for the role of Monica; they both passed. Courtney Cox Arquette ultimately beat out Nancy McKeon for the part
4. David Schwimmer was the only one of the six cast members who didn't have to audition for the show; the producers wrote the part of Ross with him in mind.( A few years earlier, they'd done a pilot for ABC about three couples in NYC and Jonathan Silverman had edged out Schwimmer for one of the roles.)
5. What's in a name? A lot, apparently. The title of the show went through several incarnations. The first name, suggested by NBC, was Across the Hall(the girls lived across the hall from the guys; get it?) The producers didn't like it, and the title of the pilot script was switched to Six of One. That name didn't stick either, so they submitted the pilot to the network as Friends LIke Us. NBC countered with the current shorter version.
(This one I definately did not know about.) 6. Were all friends created equal? Not exactly. The show was originally going to focus on four main characters(Monica, Joey, Ross, Rachel) with two supporting players(Phoebe and Chandler). But after Matthew Perry and Lisa Kudrow were cast for the pilot, the producers were so pleased, they decided to make it a true ensemble of six.
Well that's it.
Matt