Steven Moffat discusses quitting his showrunner position on 'Doctor Who' and 'Sherlock'

Steven Moffat is a household name for those that fall in the "geek" demographic mainly because of his work as lead writer/showrunner and executive producer of two of the BBC's biggest shows, Doctor Who and Sherlock. Considering he's busy with both, many people wonder how long he can keep up the head position on each show. Well thanks to a new interview with Assignment X, we have a good idea about Moffat's future with these shows.

"You never know that in advance. If we weren't enjoying it, or we didn't think there was anything good left to do, we'd stop, but we haven't reached that point yet, is all we can say," he explained. "I can envision just doing [Sherlock] for a while - for quite a while, possibly. The fact that we only do it occasionally means it's not swamping anyone's schedule."

If Moffat were to quit Doctor Who, it wouldn't be that surprising. After all, he's actually the second showrunner for the rebooted series, after Russell T. Davies left the position at the end of David Tennant's stint as the Doctor.

Sherlock, on the other had, is his creation so to say. The modern take on the classic character has been repeated (see: Elementary) but Sherlock is a show like no other, especially to Moffat.

"Eventually, I'll stop doing Doctor Who, because it stops me doing anything else," he continued. "But Sherlock doesn't swamp my schedule, doesn't swamp anyone. So I could imagine we'll come back and do Sherlock fairly often for many years, rather than very often for a few years."