In the finger-gun fight during the closing credits, Travis says "I love Spaced" as he fake dies. The British television show Spaced has a famous scene where the main characters have a similar mock gun-fight.
Ellie describes Andy as a "sensie" for being overly emotional. This was the same way JD in Scrubs described himself. The two shows share a creator, a shared world and many of the same cast
To spoof the title which no longer matches the content of the series, in the second season the producers started adding self-deprecating jokes to the show's title card. The one for this episode reads: Modern "Cougar Town".