Invention

Alydon claimed that, prior to the Neutronic war, Skaro was full of invention. (TV: The Daleks ^[+]Loading...["The Daleks (TV story)"]) Those who invented were known as inventors. (TV: The Keys of Marinus ^[+]Loading...["The Keys of Marinus (TV story)"])

K9: "But Doctor, who invented them?" Fourth Doctor: "Who else, K9?" (TV: Streets Doctor Who advertisement ^[+]Loading...["Streets Doctor Who advertisement (TV story)"])

When asked by K9 who invented the Streets Doctor Who Ice Cream, the Fourth Doctor responded "Who else, K9?", suggesting that he himself had invented it. (TV: Streets Doctor Who advertisement ^[+]Loading...["Streets Doctor Who advertisement (TV story)"])