Yep, just finished: Audi - Perscarolo - Audi in the top LMP class, Corvette - Aston Martin - Alphand in the top GT class, the #1 Audi being the first Diesel car ever to win the race. Very impressive car indeed, brand new car and engine, yet ran the full 24h with only minor problems not to mention beating the petrol cars in both speed and endurance.
As for the race itself, it's run every year on june 17th/18th between 4pm and 4pm (delayed 1 hour this year due to WC next door). As for who's showing it, that varies between countries. Here in Denmark, the full 24 hours are broadcast non-stop, split up between two channels. It's basically the worlds biggest and most prestigious motor race, with somewhere in the region of 200.000 to 250.000 spectators on the site (and that in a year when the football WC is going on right next door in Germany) and an obscene number of millions watching it on TV.