On 1983, MBC released a metaseries of dramas called "500 Years of the Joseon Dynasty," the first being The King of Chudong Palace, starring Kim Musaeng as Yi Seonggye, who would "reprise" the role in Tears of the Dragon. Chudong Palace refers to Yi Seonggye's residence before he became king; the name of his house was never brought up in JDJ and I do not know if it was in Tears of the Dragon.
The first seven episodes can be found on youtube, but with no subtitles. There is however, a way to watch with subtitles. Someone named seanmcclair has uploaded subtitle files for the first two episodes.
To watch Chudong Palace, simply convert the youtube links to mp4 files, then open the videos with VLC Media Player and then open the subtitle files. That's how I was able to watch the first seven episodes of this old show.
That being said, having watched it, I can honestly say that it hasn't aged that well. At the very least, we can have a glimpse as to how Korean dramas were made in the 80s.
This is great--thanks so much for bringing it to our attention. I watched some of the first episode without the subs but when Geunchogo ends I'll give your instructions a try to get the subs and watch a few whole ones.
When I was searching on YouTube for this I discovered the first episode of Six Martyred Ministers, mis-titled as one of the Chudong Palace episodes. That episode has the subs plugged in already. Definitely going to have to watch that one because so many people said it was so bad and boring that I can't resist it!