Considering that most musicals these days are based on a TV show or a film, or just the songs of a band/group, I can't think why no-one ever thought of "Torchwood: The Musical!". I'd go and see it! There are quite a few gratuitous 'show' lighting moments in the tv series as it is- Gwen standing in that God Spot at the end of series one, so I'm sure that Ianto's up to the job!
Thanks for reading and commenting!