The Argentinian Primera Division has been shown for about the last 4-5 years (until recently) by the national government on it's internet site Futbol para todos, which also has a youtube channel. Until recently you could watch most matches live simply by logging on to youtube and going to Futbol para todos. There was a crisis earlier this season when recently elected Mauricio Macri (president of Argentina, and also ex president of Boca Juniors, I know! What a country where the president of a football club can become the president of the nation!), terminated the contract. You can still watch the Argentine league on Youtube - there are some other youtube posters that broadcast matches, or you can watch matches on the websites of the t.v channels that broadcast it live.
For those interested, I highly recommend the Primera. It is absolutely addictive. Great quality matches, great atmosphere in lots of them, and its ridiculously unbelievable how many 90 plus minute goals there are to win matches, it seems to be much, much more than other leagues. If you're a Victory fan, why not support Velez? They are basically an inverse kit of Victory (ie White with Blue V home-Blue with white V away).
If you like the whole cultural aspect of football- the primera is absolutely magnificent with lots of history and rivalries outside the superclassico and great emotion. It's also fun to learn spanish. Anyway-its still on youtube, sorry for getting carried away.