Midge mentions attending community college in Kenosha, WI. In reality, no institution bearing the "community college" moniker existed in Kenosha in 1977, nor does one exist today. What did exist was a branch of a technical college called "Gateway Technical Institute", which would later be renamed "Gateway Technical College".
Jackie's phone number is revealed to be 453-5736 as Kelso is dialing the number.
Midge says Aphrodite was the Goddess of War, but she was actually the Greek Goddess of Love.
The second officer asks Eric if his dad is Red Forman, then follows with "you poor bastard". Possible sign of an old Navy friend of Red's or possible sign of Red's involvement with the police.