Episode 423: Behind the Sofa: The Dalek Invasion of Earth

Carole Ann Ford (Susan), Maureen O'Brien (Vicki), Peter Purves (Steven), Wendy Padbury (Zoe), Sarah Sutton (Nyssa), Janet Fielding (Tegan), Bonnie Langford (Melanie), and Sophie Aldred (Ace) watch this classic story from Doctor Who's formative years.