https://www.imgain.com/1973-blue-peter-doctor-who-star-jon-pertwee-glides-into-the-blue-peter-studio-for-a-chat-with-peter-purves-about-the-whomobile-the-doctors-unique-new-mode-of-transport/
[1973] Blue Peter - Doctor Who star Jon Pertwee glides into the Blue Peter studio for a chat with Peter Purves about the Whomobile, the Doctor's unique new mode of transport.