Because Every series has to end eventually that's just like you saying why did they endVoyager, Star Trek Deep Space Nine, Star Trek The Next Generation, Star Trek the Origianl Series.
Did you ever think of that
A series finale is the last or final episode of a television program.
Yes they do!!! They get together in the series 3 finale titled "Finale".
The series finale called "Graduation" aired in the US on the 6th of May, 2011
A series is a collection of seasons from a show. Ex. Degrassi and The Hills are both a TV Series.A season finale is the last season of a show.
So far it has not been decided when Phineas and Ferb will end, so a series finale has not been scheduled yet.
The End of the Rainbow
The final two episodes had an audience of 76 million people. It was the third highest series finale in the US.
Attack of the Show - 2005 Series Finale was released on: USA: 23 January 2013
In the series finale Sunnydale is sucked into the Hellmouth. The Hellmouth collapses and takes Sunnydale with it, since it sits on top of it.
X-Play - 2003 Series Finale was released on: USA: 23 January 2013
It is the season finale episode of season 2 entitled "into the woods"
Fox Sports News - 1996 Series Finale was released on: USA: 10 February 2002
The series finale of Gilmore Girls was "Bon Voyage" and it originally aired on May 15, 2007.
we'll find out in the series finale
October 1th, 2011
Fran & Maxwell had their twins.