This was one of the two original pilots for the Rex The Runt series. It was cast two years before the 1st Series of Rex The Runt had even begun and no characters other than The Gang were featured in it.
The gang tries to get to the north pole with this old time sloppy plasticene adventure.
Despite how they found it easy to get to the north pole in Adventures On Telly it takes them a 3 episode adventure to sucessfuly get to the center of the earth (the north pole) and found out what it's like.
This is also Aardman Animations did anything outside of Wallace & Gromitt