Netflix reached a milestone in its winter 2011 results (PDF) as it tied with Comcast to become the largest subscription service in the US. The movie rental and streaming firm added 3.3 million new customers between January and March to hit 22.8 million users, or exactly as many customers as the cable TV giant. Its expansion gave it a 63 percent leap in total subscribers just over the same period last year and nearly double the growth rate.
