Pretty Little Liars is an American teen drama mystery thriller television series loosely based on the popular book series of the same title, written by Sara Shepard.
A teen drama is a genre or type of drama series with a major focus on teenage and young adult characters.
The show premiered on June 8, 2010 on ABC Family and ended on June 27, 2017.
Freeform is an American basic cable and satellite television channel that is owned by ABC Family Worldwide, a subsidiary of the Disney–ABC Television Group division of The Walt Disney Company.
After an initial order of 10 episodes, ABC Family ordered an additional 12 episodes for season one on June 28, 2010.
The ratings success of the first 10 episodes prompted the book series to be extended beyond the initial eight novels.