Not mentioned in the poll, but they have also starred in a seris of 10 shorts (much better than the* Fosters shorts) called
Cracking Contraptions, in which they test Wallace's inventions. They aren't shown very often and are a little obsucre, but definatly worth checking out. Here's one:
http://www.youtube.com/watch?v=6cxAuU5nReU
*to my mind rather lacklustre