Firstly, the 'messy isn't it?' note is a myth.
Secondly, through a combination of story-telling and lights set up on timer switches, it took a long time for anyone to realise something was wrong. Actually, I already knew this. But what I didn't know was how gruesome the state of his body was in when they finally found him.
Then there was a detail that might have come from one of his stories: it took them days to remove his shadow from the floor. They had to get a belt sander in to do the job.
Thirdly, there was a letter enquiring about the possibility of doing more teaching work.
He never bothered to finish the letter.
Otherwise, the programme was concerned with his brilliance as a writer. I already knew that.