These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The sixth episode of the fourth season has the ABC executives trying to recast Addison, with a long lineup of actors with varying resemblances to Bruce Willis, including Jerry Doylenote Often considered a Poor Man's Substitute for Bruce Willis, who would later play Security Chief Micheal Garibaldi on Babylon 5.
Shipping Bed Death: Dave and Maddie are often considered the Trope Codifier with their hooking up at the end of the third season, to the point where this is sometimes called "Moonlighting Syndrome", with popular opinion being that people stopped watching after Dave and Maddie finally consummated, since there was no longer any reason for people to tune in to see if they would. However, the show didn't really suffer from the leads getting together, it suffered from the leads not being in the same room for about a year afterward. There was no point at which they were together as a couple at all. Willis was busy filming Die Hard, and Shepherd was pregnant, which affected their schedules with the series.