Corrected entry: Red complains to Kitty that the Corvette will be the first thing to go when the new baby arrives, and that he had been wanting it for 25 years, but couldn't afford it with the kids. However, the Corvette is a '58, which would make it 20 years old, and even Laurie would have been born long after the Corvette was originally introduced.
Corrected entry: During the game of cards when Kitty brings the youth minister to the house, Laurie, assuming to get the minister's attention, plays three "6" cards spelling out the number of the beast, "666". Although the suits are hard to discern, all three of the cards she played are black which would be impossible in a regular deck of cards.
Corrected entry: This episode was supposed to air before 22 (1x22) "The Water Tower", because in this episode where Eric tries to talk some sense into Hyde about moving to NY he speaks of "we were going to paint a pot-leaf on the water-tower" something they already did in the episode before.
Corrected entry: In the beginning of the episode where Bob and Red are competing with their Veteran's Day barbeques, Red is seen wearing the uniform of a Chief Boatswains Mate (BMC). However in a later episode where Kitty and Red are trying to remember how they met, in a flashback, Red is seen wearing the uniform of a Machinist Mate 2nd Class (MM2). Surely he advanced in rank, but I doubt he changed rates (jobs).