In Series 3, Steve Webster, head of visual effects, had to design five bears. An new bear for Leigh to wear, a stuffed one and three robotic ones, one which the head moved, one which the arms moved and one which both arms and legs moved.
For the shot like Ant and Dec and the Davina McCall interviews in Series 2 and the "Crappy Days" spoof in Series 3, the camera was set up in one place. Leigh said his lines in one place, swapped costumes and did his other line in another place and so on. The images were then fused together to give the impression that Leigh is in many places at once.