There was actually a real "Chico's Monkey Farm" outside of Savannah Georgia in the 1970's. It closed in 1979.
When Meg tells Peter that she knows about bullying, a clip reel of moments where Peter does something distasteful to Meg is shown featuring moments from the past seasons, which are matted/cropped for widescreen.
The truck Karen is driving is the same truck Peter drove in the episode where he was a redneck just without the flag in the back window.
In this episode, we find out about Peter's sister. However in a previous episode in Season 9 called Brothers & Sisters (2011), Peter said he always wanted a brother or sister bit got a broster instead.
An episode was originally supposed to be aired on this date, which was about gun violence and hate crime but was not aired, due to the terrorist attacks in Paris.