Wonder if there are any best-celling authors/film directors out there who could plausibly become interested in Ah?
I think someone posted a thread on here quite a while ago about Winston Churchill retiring from Parliament in the 1930's to write more, eventually becoming most well-known for his several alternate history books.
Let's say that during his "wilderness years", he becomes interested in Ah somehow, writing a series of Alternate History Novels, that at the time receive limited attention. At this time he did write quite a few regular historical novels, but I can see Churchill as an Ah writer somehow.
His parliamentary career remains the same as OTL throughout the 1930's-he still leads the anti-appeasement campaign and succeeds Chainberlain in 1940.
Things progress more or less the same as OTL until 1950, when Labour win a larger majority in the commons than they did historically. With not much chance of becoming Prime Minister again, Churchill resigns as leader of the opposition, becoming a backbencher.
In the final 15 years of his life Churchill devotes much of his time to writing more Alternate History books, which he decides not to publish at the time.
Churchill dies in 1965 like OTL, which sparks off a cult interest in Churchill's writings. His Ah novels attract particular attention at this stage, most notably by a famous film director (any ideas who?). Eventually Churchill's Ah novells are reissued, becoming best-cellers. Churchill's post World War II Novel about the Nazi's winning World War II is famously remade in to a film and becomes the biggest blockbuster of the 1960's.
This leads the producers of DR Who to consider concentrating on the historical aspect of the programme. The late 60's/early 70's sees many films/novels based on Alternate History scenarios (some dystopic though others have more of an escapest nature).
This is a very rough outline-perhaps it might do the trick though.