What is the premier date of this South Korean television drama airing every Wednesday and Thursday, in which Jung Hae-in appears?
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.
i don't know