Doctor Prisoner remained on top in Nielsen drama ratings during the Wednesday-Thursday time slot despite seeing minor overall decreases in its numbers:
Ep. 17 –  12.4%
Ep. 18 – 14.5%
Ep. 19 – 12.3%
Ep. 20 – 14.7%

The Banker stayed in second but also saw small decreases:
Ep. 13 – 3.8%
Ep. 14 – 4.1%
Ep. 15 – 2.6%
Ep. 16 – 3.0%

Big Issue held pretty steady in third:
Ep. 21 – 2.5%
Ep. 22 – 2.8%
Ep. 23 – 2.6%
Ep. 24 – 2.8%

Doctor Prisoner airs Wednesday and Thursday on KBS.

The Banker airs Wednesday and Thursday on MBC.

Big Issue airs Wednesday and Thursday on SBS.