ABC Family Renews 'Pretty Little Liars,' 'Secret Life of the American Teenager'

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ABC Family has renewed two of its hits, it was announced Monday at TCA.

Pretty Little Liars, currently on airing the second half of its first season, will return for a second. Liars, which stars Lucy Hale, Ashley Benson and Laura Leighton, has performed well in the ratings.

The winter premiere posted series highs, including total viewers (4.2 million). Liars is based on the book series of the same name by Sara Shepard.

The Secret Life of the American Teenager, created by Brenda Hampton, will also be back for a fourth season. Teenager is ABC Family's top original series. The hourlong drama returns Monday, March 28 at 8 p.m.