The observations that led to my cracktastic crossover idea:
- Sean Pertwee REALLY looks like his dad when he was younger.
- We never actually saw Patrick Troughton regenerate into Jon Pertwee during the original series of Doctor Who itself.
- In both Classic Who and NuWho, there's a precedent for past incarnations of the Doctor meeting their future companions BEFORE they actually meet for the "first time."
- In many ways, Sarah Jane Smith has basically become the Third Doctor during his Earthbound UNIT years.
Cast Sean Pertwee as a younger version of the Third Doctor, from between Patrick Troughton's final appearance in "The War Games" and Jon Pertwee's first appearance in "Spearhead From Space."
It would turn out that, after the Doctor was exiled to Earth, but before the TARDIS materialized in
Yes, he'd have to lose his memories of meeting her, after their adventure was done, but I like the idea of Sarah Jane using her wisdom and maturity to help guide the Doctor through his transition between Two and Three, and I especially like the idea that Sarah Jane might have inspired Three's own personality (which, in turn, so obviously inspired Sarah Jane's modern-day persona).
Sad to say, it's the closest we'll ever get to the Bannerman Road crew being able to meet Sarah Jane's "first Doctor," and Sean Pertwee has been lobbying to follow in his dad's footsteps for years, so it'd be a natural fit, I think.