In the flashback scene in the bowling alley, there is a a sign on the back wall that says "WPPL Christmas Party". This is a reference to a fictional television station that was created for a class the majority of the crew shared in school (The Art Institute of Pittsburgh) called "Broadcast Studio Production 2". The nickname for the class at AIP was "T.V. 2". That is why their team name is "T.V. 2 Productions".
The date, Dec 18, on the back wall of the bowling alley in the flashback is a reference to the director's sister's birthday.