It is set to be broadcast when the events of Gridlock happen in real life.
The tapes are locked away somewhere in Normandy and will be opened soon when season 1000000432940832 of doctor who is done.
Meven Stoffat was born in the previous universe called narnia. He unknowingly filmed it with the dinosaurs. unknown that he would forget about it and write it
Dinosaur - Steven Moffat
Dinosaur- Meven Stoffat.
Meven Stoffat- Messenger
Bloke from 1066- messenger
Person from 1066- Steven Moffat
Ashildr in real life/arya- Meven Stoffat.
Deep inside the DNA of Peter Capaldi's great great great (so on) grandmother and grandfathers DNA structure- Doctor What
Deep inside the DNA of Jenna Louise Coleman's great great great (so on) grandmother and grandfathers DNA structure- Oswin Clarence Oswaldwaitnomiddlenameisthere.