Sitcoms can be formulaic. Often this applies not only to regular episodes but to the Grand Finale. One would generally think that the writers would want to pull out all the stops and get creative to create a truly one-of-a-kind ending to the show that their fans have been following all this time. However, that's not always the case.
It goes like this: At the end of the final episode all the main [...] [tvtropes.org]