Ian (from the first doctor, having just stepped out of the tardis): "You were right doctor, you did get us to London, but about 100 million years to early."
The first doctor: "Just a tick of the cosmic clock my boy."
Barbabra: "This is not 1963ad, it must be 100 million bc."
Susan: "Wow, real dinosaurs. I always wondered what they really looked like grandfather. Do you think they are friendly?"