MBC AMS
under Index class choose TV, Radio, and News,
under Media choose TV
Set online availability to Public
and search.
There are hundreds if not thousands of old tv episodes available-sitcoms, dramas, talk shows, children's shows, even awards shows. Pretty addicting stuff. Right now I'm watching the series premiere of Diff'rent Strokes.
*Note: It has only worked for me in IE, not Firefox