Episode 1"Engineering"Episode 2"Electricity"Episode 3"Eating"Episode 4"Exploration"Episode 5"Europe"Episode 6"Everything, Etc."Episode 7"Espionage"Episode 8"Eyes & Ears"Episode 9"Entertainment" (Children in Need Special)Episode 10"England"Episode 11"Endings"Episode 12"Empire" (Christmas Special)Episode 13"Elephants"