Template:WhichDoctor
From Tardis Wiki, the free Doctor Who reference
Instructions for {{WhichDoctor}}
{{WhichDoctor}} is a simple template to alert readers to those TV Comic stories that were originally printed for the Second Doctor and Third Doctor, but then later retouched and reprinted with the Fourth Doctor.
Doctor Which?
Who experienced these events? This story debuted with either the Second or Third Doctor, then was reprinted with the Fourth Doctor. It may have had different companions in the reprint, as well. From an in-universe point of view, it's unclear which Doctor lived through these events. 
