Yahoo's fantasy football software creates millions of machine-written summaries of their fantasy football matches after each week of play. They're several paragraphs long and point out interesting things about the particulars of the teams' performance.

I would imagine that given the "All-22" camera footage from a football game, it would be possible to construct a piece of software to monitor what was going on (visually identify players by name/number, determine who has the ball, etc.) and then convert that model to a stream of English text.

Making it nuanced and entertaining, on the other hand, would be a challenge. :)