Just to add that the BBC has done good audio dramatisations of several of Pratchet's works.

https://www.bbc.co.uk/programmes/b03mz1wb/episodes/guide

Small Gods and Mort for example, are excellent. Currently not available on bbc iplayer / sounds, although they do regularly rebroadcast them and make them available online, but should be floating around on the torrent or archive sites.

BBC sounds/radio is free to listen outside the UK, unlike the tv content.