If you subscribe to AT&T's DirecTV Now, keep an eye on your bill -- prices are going up again. Last July, AT&T increased the cost of its live TV streaming bundles by $5 per month. And according to Variety, beginning in April, AT&T will add another $10 per month. That means the cost of a monthly subscription has gone up more than 40 percent in less than one year. In addition to the price changes, AT&T will streamline its DirecTV Now plans offering just two, rather than its current five (though existing customers will not be kicked out of their packages).