Serial: A   Episode Nos. 1,2,3, and 4    Title: An Unearthly Child (aka 100,000 B.C.)

The historic first-ever Doctor Who serial.  Two schoolteachers track their peculiar pupil Susan home one evening to find that
her home is a police box disguising a fantastic machine capable of travelling anywhere in time and space.  Susan's grandfather,
known only as the Doctor, discovers them and to keep his secrets, he plunges all four of them back in time to the Stone Age
where they are captured by a tribe that has lost the secret of fire.

starring William Hartnell as Dr. Who, William Russell as Ian Chesterton, Jacqueline Hill as Barbara Wright, and Carole Ann Ford as Susan Foreman.  Written by Anthony Coburn, Associate Produced by Mervyn Pinfield, Produced by Verity Lambert, Directed by Waris Hussein.

Originally transmitted from 23 November to 14 December 1963 on BBC1.