'Sherlock' Boss Fears His Stars Are Too Famous For Show

31/01/2013 14:11 GMT | Updated 02/04/2013 10:12 BST

'Sherlock' co-creator Steven Moffat has admitted he fears stars Benedict Cumberbatch and Martin Freeman will become too famous to film the TV show.

The third series of the BBC1 detective drama begins filming in March. It will be broadcast this autumn.