Corrected entry: In the episode where Phoebe's grandmother keeps lying to Phoebe about her father, Phoebe goes to visit her father and tells Joey and Chandler that, 'What if he's not this great dad. What if he's still the same guy who ran out on my mom and us before we were born.' But in the episode where Phoebe meets her dad at her grandmother's funeral, her father talks about how he burnt the formula, and put on Phoebe and Ursula's diapers backwards. Thus Phoebe and Ursula must have been born before Frank left.
Corrected entry: Whenever exterior shots of Ross' apartment building are shown, it is across the street from Monica's apartment building, which is the side that doesn't have balconies on, however Monica and Chandler are able to see into Ross's apartment from their balcony. Even if their apartment does have a balcony on the back, Ross's building is on the wrong side of theirs.l2007w