Telly fans have been waiting patiently for the return of Benedict Cumberbatch's Sherlock. Watching reruns, pouring over photos from the set, even following the crew to catch a glimpse of Cumberbatch in action, 'Sherlock' producer Sue Vertue tells us.
'It's quite tricky to film in London,' she says. Shutting streets is difficult, so most of the series is filmed with Cardiff filling in for our capital. But sometimes only the real thing will do: 'I love London. It's almost like a character in itself,' Vertue explains. 'When you need London you can't beat it. We've got a fantastic view that I don't think we've seen before this time around. It just takes your breath away.
'Sherlock is clearly 221b Baker Street, even though we obviously don't shoot there because you can't! I think it's terribly important. I don't think you can beat it really. The feel of London and the river, the taxis.'
In this upcoming season, Sherlock, Watson and co are back in the capital. Londoners will be able to spot North Gower Street. 'It's where we shoot our exterior', says Vertue, adding, 'We go to Borough Market briefly. We are on some bridges...'
In fact, London tourists got a bit of surprise during series four filming when Sherlock himself suddenly made an appearance in their holiday snaps.
'We were filming on a bridge and one of those open top tourist buses went past. People were just taking pictures of the bridge and then Benedict started running across the bridge,' says Vertue. 'There was this wonderful moment where you saw everyone thinking, 'My God. We're in London and there is the actual Sherlock running across the bridge.'
'Every single camera was pointed in one direction! It was a great moment.'
'Sherlock' is back on BBC1 on New Year's Day at 8.30pm.