Doctor Who episode hints at Ruby Sunday's connection to past Fifth Doctor story, possibly with immortal beings known as Eternals. Maestro's fear of The One Who Waits implies connection to classic ...

The Cloister Bells in the Doctor's TARDIS in Doctor Who are legendary, and they have rung to warn the Time Lord of danger ...

James singled out the exchange between Tegan 'It's stopped being fun, Doctor!' and the Fifth Doctor who gave the quiet response. 'It seems I must mend my ways...' from The Resurrection of the Daleks.