sentences:  The show was loosely based on the beginnings of Moffat's real-life relationship with Sue Vertue.NBC commissioned a remake of the show for the American market, reportedly as a replacement for "Friends", which was nearing the end of its run.Moffat and original producers from Hartswood Films, Sue and Beryl Vertue, served as executive producers on the NBC adaptation, alongside Phoef Sutton and Ben Silverman.