We’ve got another tight race in Nielsen drama ratings during the Wednesday-Thursday time slot between The Last Empress and What’s the Problem Poong Sang? The Last Empress came out ahead on Wednesday night, but despite increasing in numbers, it narrowly fell to second on Thursday:
Ep. 45 –  11.0%
Ep. 46 –  13.9%
Ep. 47 –  12.4%
Ep. 48 –  14.6%

What’s the Problem Poong Sang? rose to another series high as it topped 14% and was able to take the lead for the first time on Thursday:
Ep. 21 –   9.0%
Ep. 22 – 11.0%
Ep. 23 – 13.1%
Ep. 24 – 14.8%

Spring Turns to Spring remained in last, but it did see marginal increases:
Ep. 11 – 2.0%
Ep. 12 – 2.4%
Ep. 13 – 2.0%
Ep. 14 – 2.1%

The Last Empress airs Wednesday and Thursday on SBS.

What’s the Problem Poong Sang? airs Wednesday and Thursday on KBS.

Spring Turns to Spring airs Wednesday and Thursday on MBC.