Here's a stab in the dark: Has anyone here been to "Yongin MBC Dramia"?
Or if you haven't been there, specifically, have you been able to find a K-drama locations tour that starts in/around Seoul?

I'm thinking of going to Korea next week and this is one of the places I'd like to visit. (I'm lucky enough to have visited Korea before, so I've already checked  number of cool K-drama locations off my bucket list.)

It seems a bit tricky to get there... Found an article about it (http://travellerelf.blogspot.se/2013/07/historical... I think I can do it, but I know from previous visits to filming locations in Korea that even though the instructions seem straight forward - that's not always the case when you're stuck somewhere and only know limited Korean. :)

Check out official korean turism organization
http://english.visitkorea.or.kr/enu/SI/SI_EN_3_1_1...

It doesn't seems to be that complicated to go there :)

Directions
From Yongin Intercity Bus Terminal, take bus 10-4, 94 or 94-1. Get off at Baekam Terminal and transfer to bus 35-1. Get off at Yongcheon (용천) and walk 600m. OR From Seoul Nambu Bus Terminal, take an intercity bus to Baekam Terminal. Take bus 35-1 or a taxi to MBC Dramia.

Also you can check:
Korean Folk Village (한국민속촌)
http://english.visitkorea.or.kr/enu/SI/SI_EN_3_1_1...
http://www.koreanfolk.co.kr/multi/english/

Shilla Millennium Park
http://www.smpark.co.kr/eng/info/info01.asp
http://english.visitkorea.or.kr/enu/SI/SI_EN_3_1_1...

Goguryeo Blacksmith Town (고구려 대장간 마을)
http://english.visitkorea.or.kr/enu/SI/SI_EN_3_1_1...