First Doctor Second Doctor, appears as well. The First Doctor is seen as a sketch in John Smith's book alongside other past Doctors in the episode "Human Nature". In "Time Crash", the Tenth Doctor says to the Fifth, "Back when I first started, at the very beginning, I was always trying to be old and grumpy and important, like you do when you're young." A brief clip of the First Doctor from "The Time Meddler" appears in both "The Next Doctor" and in "The Eleventh Hour". In a clip from "The Vampires of Venice" the Eleventh Doctor shows his library card, which
Dr. Watson (debugger) Dr. Watson (debugger) Dr. Watson is an application debugger included with the Microsoft Windows operating system. It may be named codice_1, codice_2 or codice_3, depending on the version of Windows. It is named after Doctor Watson of Sherlock Holmes fame, the idea being that it would collect error information (symptoms) following a program crash. The use of the word "Watson" has since been expanded to include general end-user feedback services. The original name of this diagnostic tool was "Sherlock". The information obtained and logged by Dr. Watson is the information needed by technical support personnel to diagnose a program error