Although Grey's Anatomy has been on for years, it is still very popular not just teenagers, but also adults.  Some of the material in the show is a bit suggestive, but if you are interested in a medical story line, then you will love the show.  It is not only filled with drama, but also some scenes are very suspenseful, especially in the operating room, or when a trauma comes in.  If you are just starting to watch it, I would suggest either getting online and starting from season one, so you understand what exactly is happening, and you also meet a variety of characters along the way.  The show comes on Thursday nights, at eight.  You don't want to miss it!

Twisted is a mystery drama, that follows the troubled life of Danny Desai after he returns home from juvenile detention for murdering his aunt.  He tries to fit in at school, get his old friends back, and live his old normal life, when he is framed for killing a girl he goes to school with.  His old friends Jo and Lacey try to stand up for him, but don't know if he is forgivable.  You can check it out on abcfamily.com to catch the episodes from season 1. 

Recently, a new show Ravenswood aired.  The show is centered in the town of Ravenswood, which is not far from Rosewood, where Pretty Little Liars.  Five strangers find themselves connected by a fatal curse and need to dig in to the town's terrible history before it is too late for them.  Caleb Rivers, played by Tyler Blackburn, from Pretty Little Liars is one of the main characters of the show.  If you like mysteries and suspense, this show if for sure for you.
The show aired on October 22, and you can the season premiere on abcfamily.com, and new episodes Tuesday nights at 7 on abc family.