Sherlock season 4: Benedict Cumberbatch hints next series might 'be it' as actors struggle with schedules

Benedict Cumberbatch has hinted that the upcoming season four of Sherlock may be its last.

It’s about what’s actually right for the show, to be honest, and that has to be judged very carefully.

Think about the very limited but classic British output of certain shows, and there aren’t that many of them.