Online trailer for Radio 4 - the latest (and possibly final series ever) of Hitchhiker in its original medium, is based on the 2009 novel by Eoin Colfer with snippets of unpublished material from Douglas Adams’ archives. The surviving members of the original cast plus guests such as Lenny Henry and Ed Byrne, gathered in October 2017 to record the series which premiered in March 2018 on Radio 4.