John Goodman makes a joke during his Five-Timers monologue about not having to show up until Saturday. In reality, he did have a scheduling conflict with filming Roseanne (1988), causing him to join the production later in the week than usual. This is why Dan Aykroyd is featured so heavily and why Goodman's bumper pictures are reused from John Goodman/The Pretenders (1994), reformatted to fit this season's style.
Dan Aykroyd is credited as a 'Special Guest star' during the opening credits, but has more screen time than host John Goodman and even introduces the musical guest both times.