@Denha - I think the only way to really learn about a sport is to watch it. It's not on TV here much (to state the obvious) but a few major world games do get airplay, especially if you have satellite or digital cable with a top-tier sports package. You might be able to catch an occasional live cricket match, or at least one on tape delay.
You might also try looking online. Sometimes you can get subscriptions to watch games for a particular sports league online; cricket might have something like that. Or international sports websites might at least have highlight videos you can watch.