For the extended edition, the music on the radio that is playing when Ace enters the cafe has been changed to be the same as that which Susan listens to in An Unearthly Child.

Also, the TV set that's just about to introduce the new science fiction program footage which was included in the original transmitted version of the serial has (thankfully) been excised.

The special editions of most of Who stories on The Collection box set are usually my go to, rather than the 'as transmitted' versions. These versions are usually extended cuts that often fill in gaps that had to be excised due to time constraints of the episode.

The Looking for Dursley documentary is wonderful, heart warming, sad and poignant... a great bonus feature on this disk.