About a yard.
Levity is required. This is, I don't know, 38 years or so old yet it just doesn't date and is still one of the funniest sketches ever. Ever. If you've never seen it, you must be very young. If you've not seen it for a while, you will still do some LOLs, probably even a ROFL. It's 10 minutes and 50 seconds of the most immaculate comedy timing ever filmed, even from the straight man who, because he'd just flown in from his mother's funeral, only learnt the script on the way to the studio.
Andre Previn said later that Eric had told him the secret was to believe you weren't being funny. He must have been a fast learner as he deadpanned brilliantly, almost outdoing Eric himself, who was a master. In his superb biography, Eric Morecambe Unseen (one of the best biographies I've ever read - he was granted complete freedom to trawl the files in Eric's office), William Cook gives a fascinating insight into Eric Morecambe's mind. He didn't just do Eddie Braben's lines, he was a a proper funny man, always looking for inspiration, sometimes in the most unlikely of places: Cook even unearthed a Frank Zappa album from among his effects. Next month it will be 25 years since Eric Morecambe died; expect to see this quite a bit.