I looked for the MBC Creative Children's Song Festival video about 8 years ago, but I gave up because it didn't come up.
And a few years ago, I checked that there was a video in the MBC archive.
But I had to pay to watch it, and I had to pay again to cut the video and keep it, so I gave up..
So I gave up,
and when I contacted iMBC a few months ago,
they told me that the VOD service had ended a long time ago and that there was a separate department that sold CDs, and told me how to contact them.
I inquired and the price was higher than I expected, but I really wanted to get the video, so I just bought it.