By now, most viewers of New Who are familiar with K-9, the tin dog.  He makes his return in the second-season episode "School Reunion," as the companion to Sarah Jane Smith.  Later, he's a familiar face in the spinoff The Sarah Jane Adventures.  However, what you might not know is that though both Sarah Jane and K-9 traveled with the Fourth Doctor, it wasn't at the same time.  Imagine if Mickey Smith (the other tin dog, right?) was found, in a future episode, to be hanging out with the Ponds … [Read more...]