I got as far as Mort and stopped for no other reason than those were the three books I had. Excellent reading, though. There's enough imagination in those first two Rincewind books for a hundred more books, let alone what I'm sure the others introduced.
The Hogfather adaptation is amazing too.
I really liked all of Sky's adaptions honestly, sad that they still haven't done any of the Vimes ones
Need to catch up with Discworld aatually, still got Unseen Academicals unread.