In 'One Tree Hill', what sport is central to the story?

In 'Glee', what is the name of the show choir? In 'Glee', which coach is the club's rival and cheerleading leader? In 'Gossip Girl', who is revealed to be Gossip Girl in the original series? In 'The O.C.', in which California city is the series set? In 'Friday Night Lights', what sport does the Dillon Panthers team play? Which actor played Coach Eric Taylor in 'Friday Night Lights'? In 'Dawson's Creek', in which fictional town is the series set? In 'Pretty Little Liars', who sends threatening messages to the girls?