Three at once (Score 1)

I started three simultaneous timelines:

1. Tom Baker. That's the fourth doctor, the one I could watch when I was a child on the Galician Television.
2. Christopher Eccleston, the ninth doctor. The reimagined series can be watched without knowing anything about the former.
3. William Hartnell. The very beginning of the show. Unfortunately, there are some missing episodes, reconstructed from pictures and audio recordings, not very amusing.