When did the American comedy-drama television series which its consisted of 12 episodes premiered 
Younger (season 3):  The first season consisted of 12 episodes, premiering on March 31, 2015 at 10 pm Eastern time. Younger (season 1): The first season of the American comedy-drama television series "Younger" premiered on March 31, 2015, on TV Land.
March 31, 2015