- Hilarious in Hindsight: The "Fast Return Switch" label on the console foreshadows Doc Brown's Dymo-tape labels all over the inside of his time machine.
- Special Effects Failure: Merely putting the camera out of focus to suggest a melting clock doesn't quite carry the idea across. Richard Martin, the director, later said that he'd have steam pouring out of the clock if he'd had the budget.
- What Do You Mean, It's for Kids?: Between the haunted house tropes, generally creepy atmosphere and Susan wildly stabbing a bed with scissors. Not to mention attacking Ian and Barbara with them.
YMMV / Doctor Who S1 E3 "The Edge of Destruction"