Jerry Springer 2

Actually, one question. The cover of the Jerry Springer clearly shows the opera is called, Jerry Springer The Opera (incidentally the Woolies online price is £3 cheaper than amazon, maybe they're trying to clear their stocks?). Yet both bloggerheads and Chicken Yog refer to it as Jerry Springer: The Opera. The BBC has done likewise. From whence did this colon come? I can't possibly support buying a product where random punctuation marks appear.