In one of the flashbacks, we find out how Mike gave Richard 'Boner' Stabone his nickname. When meeting each other on the first day of school at the bus stop, Boner introduces himself as "Dickie," which Lil' Mikey doesn't like. He quickly comes up with "Boner" from his last name, apparently unaware of the new nickname's connotation.
In this episode the Seavers have five bedrooms. But when Luke moves in a few seasons later they only have four.
In the scene set in the beauty salon, there is a glass of wine and a glass of juice. Then, there are two glasses of juice. Additionally, the levels of the liquids in the glasses fluctuate.
When Jason and Maggie wake up, a magazine is on the bed that wasn't there when they fell alseep.