Perhaps the moral of this story is that you should never meet your heroes. Or maybe your heroes should never take your corporeal form?

This story provides a great example of a world that would be difficult to show on TV but which works well on audio - it’s hard to imagine how they would have visually represented The Doctor’s conversations with Omega.

Most of the awkward comedy of this story lands well. The fact that The Doctor you've been following through the first three parts of the story is not the real Doctor is quite a monumental twist! But the complex plot is quite hard to figure out without rewinding back some key scenes. To the point that towards the end a character essentially turns to camera and explains what's going on.