Doctor: 'I'm sorry. It's too late. I'm regenerating.'When I first saw the end of this episode, I was totally blown away. I remember looking at my friend in bewilderment, and wondering what the fuck had just happened. Was the news that Tennant had signed on for five more episodes mere propaganda designed to disguise Russell T. Davies dastardly master plan? Was the Doctor really going to regenerate? And, more importantly: who was he going to regenerate into?
