One of the few episodes where the living room fireplace is seen lit (in the background of the scene where Mr. Duggan comes to the house to discuss the accident with Mr. & Mrs. Brady).
Mr Duggan who has the car accident with Carol, is played by Jackie Coogan. Coogan is most famously known for playing Uncle Fester in The Addams Family, who often crashed his motorcycle.
Jackie Coogan previously appeared in Season 2 Episode Double Parked as a neighbor signing a petition.
The car Greg is backing up in the accident reconstruction is a 1971 Plymouth Barracuda convertible, as seen driven by Mike Brady in the previous season. For the fourth season, this particular 1971 Barracuda was modified by Paramount with a 1972 front grille and rear circular tail lights, as Plymouth discontinued their entire convertible line for the 1972 model year.
This episode is pretty much a direct ripoff of The Partridge Family episode Season 1 Episode 2 The Sound of Money which aired 2 years beforehand.