The show broadcasts every week on Sunday at 6:45 PM KST!
You can watch the full and previous episodes subbed in English on Viki: here (but region-restricted, so see different website such as kshow)
Yunho asking the teacher if he knows TVXQ in different languages and abbreviations XD!
Video Cuts on official naver channel 두니아~처음만난세계, as well
MBCentertainment and 두니아~처음만난세계,
Shared by TVXQ! Express