The living room in the "old" house is a dead ringer for the All In The Family living room and also for the living room in the Everybody Loves Raymond house.
The show takes place in Worcester, Massachusetts but is prominently shot in Brockton, Massachusetts and never once in actual Worcester.
In the series finale, Patty can be seen reading "My Brilliant Friend" by Elena Ferrante, a story about female friendship.
The opening credits change in each episode to black out "F---" in different ways.
In S1:E6, Sam's (Raymond Lee's) wife mistakenly calls Allison "Addison." In the series Quantum Leap, Raymond Lee's character's fiancé is named Addison.