Episode eight is called The Hungry Earth and is the first half of a two part story, the second (episode 9) is called Cold Blood.
Doctor Who - 1963 The Mind of Evil Episode Four 8-8 is rated/received certificates of: UK:U (DVD rating)
There is no definitive information about William Hartnell's favorite episode of Doctor Who. However, it is documented that he was proud of the show and his contribution to it during his time as the First Doctor.
Doctor Who - 1963 The Mind of Evil Episode Five 8-9 is rated/received certificates of: UK:U (DVD rating)
Doctor Who - 1963 The Mind of Evil Episode Two 8-6 is rated/received certificates of: UK:U (DVD rating)
Doctor Who - 1963 Colony in Space Episode Six 8-20 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 Colony in Space Episode One 8-15 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Mind of Evil Episode Three 8-7 is rated/received certificates of: UK:U (DVD rating)
Doctor Who - 1963 Colony in Space Episode Five 8-19 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 Colony in Space Episode Four 8-18 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Mind of Evil Episode Six 8-10 is rated/received certificates of: UK:U (DVD rating)
Doctor Who - 1963 The Mind of Evil Episode One 8-5 is rated/received certificates of: UK:U (DVD rating)
Doctor Who - 1963 Terror of the Autons Episode Three 8-3 is rated/received certificates of: Australia:PG UK:PG (DVD rating)