Walking with Dinosaurs was a six-part television series prouced by the BBC, narrated by Kenneth Branagh, and first aired in the UK in 1999. The series was subsequently aired in North America on the Discovery Channel, with Branagh's voice replaced with that of Avery Brooks. The series used computer-generated imagery and animatronics to recreate the life of the Mesozoic, showing dinosaurs in a way that previously had only been seen in feature films. The program's aim was to simulate the style of a nature documentary and therefore does not include "talking head" interviews. The series used paleontologists such as Peter Dodson, Peter Larson and James Farlow as advisors (their influence in the filming process can be seen in the documentary Walking with Dinosaurs - The Making Of).