Cheers was one of the first shows where I paid attention to the writers because their [work] was better than everything else I was watching. The writers weren't afraid to let a joke fall slightly flat if it advanced the characters.
Shawn RyanSeries finales have that responsibility to leave you feeling good about entire series. You want to feel like the viewer closes the book satisfied. And if you strike out on the finale it skews how you feel about the entire series.
Shawn Ryan