Tardis:Capital letters
From Tardis Wiki, the free Doctor Who reference
The article "the" in names like "the Doctor" and "the Master" should not be capitalised (unless, of course, they begin a sentence). The articles "a", "an", and "the" only should be capitalised in titles and proper nouns. "The first broadcast of an Unearthly Child" should be written: "The first broadcast of An Unearthly Child."
