How can I encourage my kids to play more video games?

I bought my children various games and consoles for christmas, but trying to get them to play with them for longer than an hour has been a nightmare. Night after night I try to get them to sit in front of the telly but all I hear is - Mum can we draw, Mum can we paint, there so ungrateful. Just last night I put the bratz website on for my daughter, as soon as my back was turned she had sneaked on to some site about saving rainforests, I was bloody livid. They think of nobody but their bloody selves my kids, self self self.