Episode 1"I-Spy"Episode 2"International"Episode 3"Imbroglio"Episode 4"Indecision"Episode 5"Invertebrates"Episode 6"Inventive"Episode 7"Incomprehensible"Episode 8"Inequality and Injustice"Episode 9"Illness"Episode 10"The Inland Revenue"Episode 11"Infantile"Episode 12"Illumination and Invisibility"Episode 13"Intelligence"Episode 14"Idleness"Episode 15"Ice (Christmas Special)"Episode 16"The Immortal Bard (Shakespeare Special)"