Riverside Studios, London The madcap sci-fi tale is retold on a lavish scale, complete with in-show merch, but it never really blasts off Douglas Adams's sci-fi comedy about Earth's destruction and Arthur Dent's intergalactic adventures has become a stratospheric enterprise since the original radio series in 1978. That spawned six books, a TV series, a film, comics, stage adaptations " and branded bath towels. Boomin…
