Simplify the following text for a Grade 10 native English-speaking person.
Original: The West Wing is an American television serial drama created by Aaron Sorkin that was originally broadcast on NBC from September 22 , 1999 to May 14 , 2006 .
Simplified: The West Wing is an American television drama created by Aaron Sorkin that was originally shown from September 22 , 1999 to May 14 , 2006 .