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Writer Russell T Davies has been credited as the man responsible for putting Doctor Who back at the heart of Saturday evening TV.

When he revived the popular BBC series in 2005 - after a break of 16 years - it was a commercial and critical success with Davies as lead writer and executive producer, a role he will hand on to Steven Moffat in 2010.

The 45-year-old spent much of his early career working in children's television, but it was his adult drama Queer as Folk that first put him on the map.

Davies, who was appointed OBE by the Queen last month, will answer some of your questions as the current series comes to an end.

You can do so here: http://news.bbc.co.uk/1/hi/entertainment/7484046.stm