This is why I miss John Ritter SO much. It seems the he had ANOTHER footsie scene to his credit. This time, with the lovely Markie Post. This footsie scene is from the sitcom "Hearts Afire" (Season 1, Episode 20 - Cold Feet, Part 2). John and Markie decides to get married, and they run to and fro in the snow barefooted (actually, John is barefooted, Markie is in hosed feet... you figure it out). Afterwards, they sit by the fireplace, and warm their feet together, hence the footsie playing.
I knew that this sitcom would have hosed feet/legs galore, but after I discovered that scene... I was in shock! Well, here is the edited version. I'll upload the full version later.
http://www.mytempdir.com/975005
UPDATE: Here's the full version.
http://www.mytempdir.com/978017