In article ,
 Jeffrey Kaplan  wrote:

> Previously on rec.arts.sf.tv.babylon5.moderated, Josh Hill said:
> 
> > BTW, am I the only one who questions the BBC's decision to put the
> > show on hiatus? With all due respect, the spinoffs aren't nearly as
> > satisfying. I'd rather they made more Doctor Who's.
> 
> It's not entirely by choice.
> 
> David Tennant is going to be spending a year doing stage-work, and the
> BBC (wisely, I think) want to keep him as the Doctor.  That means they
> can't sub in someone else.

  IIRC somewhere back in the mists of time, there was something said 
that the Dr. could only regenerate (or whatever they call it) 13 times. 
They have to be getting near that.
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