Fridge Logic: invoked Servo begins to call out the ridiculousness of worrying about a fire in space, but gets drowned out.
Misapplied Phlebotinum: The entire joke of the radio show skit. Crow and Servo manage to get Krasker's afterlife two-way radio working, and immediately use it for a sports talk radio show. Mike spends the entire sketch flabbergasted as Abraham Lincoln and Winston Churchill call in from beyond the grave, and not even they're interested in anything besides who'll win the Super Bowl that year.
Technology Marches On: invoked Averted with The Selling Wizard. Grocery and supermarket refrigeration technology has changed very very little. The anodized aluminum has been dropped for a different alloy these days, tho.
Take That: Winston Churchill slams the Buffalo Bills' (especially then-quarterback Jim Kelly's) chance of having a Super Bowl ring.