The whole marathon is SATURDAY NIGHT, which is MARCH 18th. Saturday gets a higher viewership, so that's why. However, only the Recobbled Cut will be re-aired at the same time on Sunday. It's also worth noting that they can be re-aired any time afterwards.
Also, I found that the version comparison would be kind of boring, but I might do it as an extra for your DVD set. I finally sat down to watch the song scenes and now I can't get the Brigand song out of my head (don't worry, I won't shoot myself until AFTER the marathon). So, I'm thinking it'll be more effective to show Arabian Knight right afterward to drive home the complete molestation made to the film.
I forgot about A Christmas Carol....
Anyway, here's the new schedule:
6:30 PM - A Christmas Carol
7:00 PM - The Thief and the Cobbler: Recobbled Cut
8:30 PM - Arabian Knight
9:45 PM - The Thief Who Never Gave Up documentary
10:40 PM - Commercial Reel and Pink Panther titles
11:15 PM - I Drew Roger Rabbit
11:45 PM - Animating Art
Also, there will be a few surprises. I'll insert the pencil tests reel, trailers, and maybe the Charge of the Light Brigade animation as filler. Basically, keep 6:30-12:30 open.

It'll be re-aired on Sunday at 7:00 PM, too. More showings if it's a really big hit.
One other thing... during the pencil test reel, there's an excellent quality clip of the "Dance of the One-Eyes" music. Where did you find it?