Britain it has been heard on the digital channel BBC Radio 4 Extra. In the United States, it airs on nearly 200 radio stations including many large stations like WCCO-Minneapolis, KSL-Salt Lake City, KOA-Denver and WIND-Chicago. All of the stations and airtimes are available at the series official website. It also airs regularly on XM satellite radio channel 163 and Sirius channel 117, Sirius XM Book Radio. Most of the stations air two episodes each week, usually on the weekends and many times back to back. The sound mix was produced at Falcon Picture Group studios and later at the Cerny Sound-to-Picture studio at Cerny American Creative in Chicago. The sound engineers that work on the series include Roger Wolski, Bob Benson, Craig Lee, Tim Cerny and Jason Rizzo. The episodes are produced and directed by Carl Amari. Episodes The following episodes include stories that were adapted for radio from the original Twilight Zone television scripts, as well as original stories produced exclusively for this radio series. Volume 1 Volume 2 Volume 3 Volume 4 Volume 5 Volume 6 Volume 7 Volume 8 Volume 9 Volume 10 Volume 11 Volume 12 Volume 13 Volume 14 This collection was only released as an online digital download, rather than on CD. Volume 15 This collection was only released as an online digital download, rather than on CD. Volume 16 This collection was only released as an online digital download, rather than on CD. Volume 17 This collection was only released as an online digital download, rather than on CD. Volume 18 This collection was only released as an online digital download, rather than on CD. Releases Website The Twilight Zone Radio Dramas were initially produced in 2002 and made available for sale on-line with the launch of the Twilight Zone Radio website. They were originally available in audio cassette tape and CD "collections" of 4 episodes apiece. Eight episodes were produced in 2002, and eight more in 2003. By late 2004, after the first 24 episodes were released between 6 numbered collections, the series would no longer be made available on cassette and new CD "volumes" comprising 10 episodes each were introduced with the release of six additional episodes, ending the year with 14 episodes for 30 in total, which were reorganized and shuffled between these first 3 volumes. In 2006, volumes 4 through 9 were released (60 episodes), then volumes 10