Podcasts are episodic audio programs distributed digitally, usually via an RSS feed. Most people listen to them through "podcatcher" software, and there are several directories which catalogue active podcasts.
The first Terry Pratchett-related podcast was the no longer active The Pratchett Podcast in 2011. Since Terry's death, and particularly in the last few years, several shows have appeared where the hosts read and comment on the Discworld books. This is an adaptation of the popular "TV recap" podcast format. Such podcasts are sometimes described as "fancasts".
Listed in chronological order of release.
Official site: radiomorpork.wordpress.com
Launched August 2015; episodes (usually) released monthly.
Irish hosts Colm and Steve read each Discworld book in order, and create rankings.
Official site: pratchatpodcast.com
Launched November 2017, released on the 7Ath of each month.
Australian hosts Elizabeth Flux (writer) and Ben McKenzie (comedian) read and discuss every Pratchett book (not just the Discworld), each with a special guest. Is not following strict chronological order. Also has a supporter only bonus podcast, Ook Club.
The Death of Podcasts
Official site: aalgarcom
Launched November 2018; released monthly, usually on the 15th or 16th.
Hosted by married American couple Amanda Smith and Ron “AAlgar” Watt. Describes itself as "a comprehensive review of Terry Pratchett's Discworld series." Also on Tumblr.
Official site: wyrdsisters.podbean.com
Launched January 2019, released on the 28th of each month.
A monthly Discworld re-read podcast, hosted by Americans Dani, Manning and Liz. Also has a Tumblr.
Witches and Wizards Portal
Official site: mindkindle.net
Launched April 2019; released weekly.
A weekly Discworld discussion podcast. Hosted by "the Medieval Gnome", an American fantasy fan, who describes this podcast as "a portal between that fantasy world called the Discworld and Roundworld, what we call reality". Previously called The Discworld Portal until September 2020, then briefly Ponder's Wizardly Portal before the current name.
The Truth Shall Make Ye Fret
Official site: buzzsprout.com
Launched November 2019; released weekly, usually with a break after three episodes of one book.
A weekly Discworld podcast. Hosts Joanna Hagan-Young and Francine Carrel read and recap every Discworld book in order, over three episodes for each book with a week off in between.
Desert Island Discworld
Official site: desertislanddiscworld.com
Launched November 2019; released weekly in seasons of six episodes.
A Discworld interview podcast. Host Al Kennedy interviews a variety of guests about their favourite Discworld books.
The Compleat Discography
Official site: compleatdiscography.page
Launched January 2020; released fortnightly, at least at launch.
“Four nerds” do a book club style read-through of the Discworld novels and related works, in publication order. Occasionally special guests; also intend to cover The Watch.
Who Watches the Watch
Official site: pinecast.co
Launched May 2020; released weekly, with 2-3 episodes per book discussed (so far).
An international collection of Terry Pratchett fans - Charlotte, Lucy, Janos and George - began to re-read the Watch novels in anticipation of The Watch, planning to compare the two versions. Due to events, they instead pivoted to reading other Discworld books in order of release, with two or three weekly episodes per book and lots of digressions. Self-styled 'bad boys' of discworld podcasting. They currently also have a bonus episode per week for their patreon in which they are currently writing a Young Adult fiction book.
Official site: acast.com
Launched July 2020; released fortnightly in seasons of roughly 20 episodes, with 2-3 episodes per book discussed (so far).
American and English Discworld fans, Holly and Julie, discuss the series with two new readers, Americans Mark and Jess. Reading the books in order.
Official site: podbean.com
Re-launched in February 2021; original version launched c.2008 and released sporadically until January 2015
A re-launch of The Turtle Moves using the old RSS feed, though the original episodes are no longer available. A solo podcast hosted by Alex Gilmour, and possibly the earliest Discworld podcast in its original form, it's now called "Pterry Ptalk". There's a Tumblr page at turtlemoves.tumblr.com.
Official site: sounder.fm
Launched March 2021; released monthly
Two Australian academics, Josh and Alice, analyse the Discworld books from an academic perspective, beginning with Unseen Academicals.
Official site: anchor.fm
Launched April 2021; planned fortnightly release
Young Australians Kayleigh Love and River Lewis read one Discworld book every episode and discuss it. Just one episode released so far, but it's still early days.
The Pratchett Podcast
Launched October 2011; released monthly or bi-monthly for 61 episodes through to October 2018.
A sometimes monthly news, discussion and review podcast, mostly about the Discworld. Hosted by Graeme Sheridan and sometimes Rhys Parton. Most recent thirty episodes available here; the first fifteen episodes here.
Ankh-Morpork Public Radio
Official site: shoutengine.com
Launched in September 2016, and released monthly to November 2016.
The Turtle Moves
See Pterry Ptalk above.
And he said to me
Official site: none, but it appears to be on most podcast platforms.
Launched December 2019, released sporadically
Artist and author Bernard Pearson, longtime friend of Terry's and owner of the Discworld Emporium, shares stories about Pratchett in conversation with his other friends, including Rob Wilkins. Released two episodes but hasn't been active since April 2020.