I dont know how popular it became in the UK...I guess it's up to the ratings figures there with regards to its return....I read that "Diary.." only made its way over the pond because of the various TVlistings gap the writers strike made. Makes sense i guess. For me, the last time I saw Billy Piper was when she was a baby Britney teen pop star so I'm still acclimatising to seeing her in this role!