KBS's youtube account will usually post it three weeks after the show's broadcast in korea if I am not wrong. However, there are other sources too. The thing is,that episode is very new since it was broadcast just yesterday, so it will be hard to find one that has been already subbed. I found one without english subs. There are two parts to it.
First part:
http://www.dailymotion.com/video/x27dtl2_%EB%8C%80%EA%B5%AD%EB%AF%BC%ED%86%A0%ED%81%AC%EC%87%BC-%EC%95%88%EB%85%95%ED%95%98%EC%84%B8%EC%9A%94-e193-p1_creation
2nd part:
http://www.dailymotion.com/video/x27dto1_hello-snsd-tts-e193-p2_creation