Benedict Cumberbatch says 'Sherlock' is always aiming to better itself.
The actor plays the lead role in the BBC One detective drama and while he is pleased with the success it has already has, he and the rest of the team are keen for it to improve.
He said: "It's extraordinary. We made it with confidence. It has exponentially grown, and considering we only have six episodes it's amazing how iconic it has become. We love filming 'Sherlock' and the expectations are high so we have to keep working. That's a lovely feeling for us.
"He will develop, it will develop, and we will keep trying to outdo our last efforts."
Since playing Sherlock, Benedict - who recently completed filming on a role in the 'Star Trek' sequel - has become a big sex symbol but he admits he can't see it himself.
He told The Sun newspaper: "I don't know about being the sexiest man in the world. I am barely the sexiest man in my flat and I'm the only guy living there.
"It makes me laugh because I see all the faults - I have spent 35 years of my life with myself.
"But I am very flattered. I don't know how else to take it but to be flattered and giggle."