What was the premiere date for the SBS series that Jung Hae-In currently appears in?
Jung Hae-in:  He is currently appearing in the SBS's television series "While You Were Sleeping". While You Were Sleeping (2017 TV series):  It airs on SBS, every Wednesday and Thursday at 22:00 (KST) time slot, and premiered September 27, 2017.
September 27, 2017