2. Glee Meets Lost
Lost: An ABC show following the lives of 43 survivors of a deadly plane crash, leaving them deserted on a mysterious island. Over the course of the show, many lead characters were killed and replaced with others. The show ran for six years and featured some of the most insane twists and turns of any show in history (including a smoke monster and those pesky polar bears!), with millions still arguing over just what the series finale was all about.
Glee: AAAAAAAAAAAAAAAAAAAAAGHHH! I'm sorry, I should try to be more objective. Let's start over.... Glee is a Fox series, running for four years at the time of this article's writing, and is about a high school glee club. The majority of episodes feature their despicable glee covers of awesome songs (SLAP!) sorry, their a capella covers of awesome songs, with many dreadful waste-of-money albums (SLAP!) sorry, many compilation albums of their songs being released and hitting the Billboard Charts.
The Crossover: On their way to a glee convention (or whatever those people do) the plane the characters are all on crash on the mysterious island as well. They try to join forces with the other survivors, but as soon as they attempt a rendition of Weezer's 'Island In the Sun', the other castaways feed them to the polar bears.