S@mwich wrote:I guess I see the colour of magic as a 'the light fantastic 1' rather than the light fantastic being a 'colour of magic 2'
I feel pretty much the same way. I seriously disliked The Colour of Magic and wasn't going to read Pratchett again, but someone talked me into reading Equal Rites and I liked it. Some years later I read The Light Fantastic and that made up for the ending of the first book, so for me, TCoM is definitely only part one of The Light Fantastic.
I did have to go back and check thoroughly to be sure, but it's true: Rincewind first has a hat in, I think, Mort. In TCoM, he tells the dryad that he lost his hat, but the narration states that he lied when he said that. I think he got the hat after he went back to UU at the end of TLF. There wasn't anyone senior enough to tell him he couldn't have one - after all, he beat the then-chancellor in a fight, so he technically was the new Chancellor! Fortunately he also knew what that entailed, so he quit in favor of being the Librarian's assistant.