The Refrigerators Worked
The set of the show actually had working refrigerators. Both of the refrigerators in Monica’s and Joey’s apartments worked. They even had drinks for the cast and crew in Monica’s fridge. Joey’s fridge was mostly empty a lot of the time.
Ross Was Made For David
David Schwimmer was the first one to be cast on the show. The executive producer had actually worked with Schwimmer in the past and wrote the role of Ross Geller with him in mind. Even though other actors had auditioned for the role, it was given to Schwimmer.