^I love that story, in fact it was one of the few from that period (still stinging as I was from Tom leaving and the loss of the Delia theme tune) I remember liking at the time of broadcast. It has a real Sapphire & Steel vibe to and that puppet is freakish.
At the end of the story the Tardis almost has a Star Trek bridge compliment.
It would be fun to have had a season with five or six companions of various ages, time periods, genders and species all knocking about that old gas oven with young/old Pete trying to keep them all together.
I doubt if anyone would dare do that now.
Still Big Finish could pull it off.