The discovery of the structure of DNA by Watson and Crick…
I haven’t seen this since the first (and only?) time it was aired on the BBC, and there were whole scenes I remember quite distinctly. It takes the great tack of presenting the race to work out the structure of DNA as a dynamic detective story, which clever people trying to work out the puzzle from the patchy evidence.
What really makes it so watchable is Jeff Goldblum in his prime, acting like a hyperkinetic, goggle-eyed predatory bird, marvelling over evidence, harassing people at the oddest times, and drilling towards the truth as James Watson.
This is marvellous, and I give it 1/2 a star extra just because it’s so little seen, and should be seen by more people.