Nowhere Man
From what I can recall, the writers may have had enough warning to cobble together an ending, but it was obvious that they needed more episodes to properly tell the story.
Drive
Nathan Fillion and Emma Stone star in a cross-country illegal road race show. It was a little silly, but it was a lot of fun. Some of the episodes ended up only airing on the internet.
The Tick
This one didn't have enough of a back-story to worry about missing out, but it was a humorous show.
Surface
I have this on DVD and I still haven’t finished it. It seems pretty good, though.
Now and Again
I might have the title wrong on this one, because a family drama of a very similar name—Once and Again, I think—aired at the same time. This one was about a dead man’s brain (John Goodman starring as the dead man) being transferred into a manufactured human body. It was just getting good—he had returned to his family and told them he was in a new body—when the show was cancelled.
MechWarrior
This was a really bad cartoon that came out to advertise some low-quality robot toys, but I still really liked it.
Journeyman
Better Off Ted