Cable station tvN has announced a significant change in its scheduling plans, going six days a week with drama programming. tvN is adding a Wednesday-Thursday drama slot to the schedule, and will be shifting its Friday-Saturday shows to a more traditional Saturday-Sunday slot.One station rep explained that the decision comes out of the station’s recent ratings slump in an effort to breathe new life into things. After all, while tvN has been home to many of cable’s biggest success stories, it also has its fair share of underperformers; this year has produced lower-than-expected ratings for many of its offerings, like Introverted Boss, Tomorrow With You, and Chicago Typewriter.The first tvN drama to be affected by this scheduling change will be Forest of Secrets, the pre-produced thriller starring Jo Seung-woo and Bae Doo-na. It premieres on June 10 as a Saturday-Sunday drama. The Wednesday-Thursday drama block will launch in July, no announcement yet on which drama will premiere then.