Teen Gen or Teen Generation is a Filipino teen drama television series created and directed by Mark Reyes, developed by Kit Villanueva-Langit and produced by GMA Network. The show premiered on December 16, 2012, aired every Sunday at 3:00 p.m. time slot and December 23, 2012 worldwide via GMA Pinoy TV. It concluded on June 30, 2013 and consisted of 28 episodes. The series is a spin-off of the 90's youth-oriented show T.G.I.S.