KBS World TV has a 10-minute program which teaches viewers basic Korean expressions through drama and K-Pop. The show is titled 두근두근 한국어 [dugeun dugen hangugeo] or “Pit-a-Pat Korean”. If you don’t already watch them on KBS World, you can watch the show on YouTube here. I think there will be a new episode every week.
The Korean expressions are easy, but the hot teacher -Ms. Ka Eran- speaks entirely in Korean (with English subtitles), and the sample dialogs are pretty long, so there’s something for everyone, from beginners to advanced learners. Enjoy!