At the family dinner (at the end of the episode) when Danny's son admits that he asked a girl out and she said "No", Danny utters the phase "Please don't go, girl" followed with "It's an oldie but a goodie". He is, in fact, referencing the New Kids on the Block song. Donnie Wahlberg was a member of that group before becoming an actor.
In the last sentence of the order Erin gives Anthony, the word "assistance" is spelled incorrectly as "assistantnce".