Seasonal Rot/Playing With

Basic Trope: A show declines in quality as it goes on.
 * Played Straight: The third season of "Alice and Bob" is not as good as the first two.
 * Exaggerated: "Alice and Bob" goes from being an Emmy award-winning series to being So Bad It's Horrible within the scope of two seasons.
 * Justified: Most of the original writers left, leaving the show in the hands of people who don't know what to do with it.
 * Inverted: "Alice and Bob" starts out as a terrible show, but gets better as it goes on.
 * Subverted: "Alice And Bob" was always a terrible show.
 * Double Subverted: See "Inverted"
 * Parodied: ...
 * Zig Zagged: The show alternates between good and bad.
 * Averted See "Subverted"
 * Enforced: ...
 * Lampshaded: "Remember when this show was good?"
 * Invoked: ...
 * Defied: The show keeps the original crew throughout the entire series to prevent this from happening.
 * Discussed: ...
 * Conversed: ...