How the Universe Works

Narrator (31 episode) / Himself - Narrator (8 episodes)

Himself - Narrator (16 episodes) / Self - Narrator (9 episodes)

Himself (6 episodes)

Himself (6 episodes)

Herself (6 episodes)

Himself (6 episodes)

Himself (Archive footage) (5 episodes)

Himself - Narrator (1 episode)