I thought it was Big Train, but I was wrong.
A Scots Highlander is rowing a boat across a lake, facing the camera. He tells a long, involved story of having to go across the lake several times, for bread, for milk, to get the fireman...It is punctuated with the words 'so I row and I row and I row', and ends with the payoff that he did it mainly to get the fireman into bed.
It was a show from the last ten years, I'm pretty sure, in the style of Big Train but as I've stated, not. Any ideas?