The episode opens with a very nice, harmonized singing of "On Moonlight Bay" by Rob, Buddy, and Sally.
Another occasion in which the changing value of money is important. Rob loses $300 to Blackie -- about $2,000 in 2011 dollars.
We see the Petrie's basement in this episode. It's a homey-looking room: Pool table, comfortable chair and sofa, card table, eclectic decor. It's surprising that Rob and Laura and their guests don't spend more time here.