King Sejong Institute Self-learning Korean Courses

The King Sejong Institute website provides "Self-learning Korean courses" covering some of the material from the Sejong Korean Conversation series.

(To use them, you'll need to register/login. Also note that the site may be a bit slow to respond...)

They seem to me as if they'd be mostly useful for grammar review and some listening practice of the material in the four volumes of Sejong Korean Conversation.

On the main site, mouse-over "Learning" and select "Self-learning Korean courses", then click on whichever book you want to review (Sejong Korean Conversation1 etc.). Then choose "Permanent Opening Curriculum" with the appropriate language, then "Apply", "Confirm". 

Each chapter seems to consist of four short videos consisting of conversations demonstrating a grammatical point, followed by the teacher's explanation, with everything accompanied by bilingual subtitles.  

After you've finished viewing the videos, click on "Join Lecture" or "Learning" to go back to the main page for each volume. It is not necessary to view lessons sequentially: next to the pencil icon you choose any of the chapters in the current volume. You may even go back to the main site and choose another volume.