Geared to a mobile-first customer, the Xfinity Stream trials have had early adopters sign up online, download the app, and then start streaming across computers, tablets, and phones. With the product's evolution, options will grow. To watch on big screens, Xfinity Instant TV customers will be able to tune in through the Xfinity TV app on Roku streaming-media boxes, which connect to TV sets. And as with skinny bundles, customers lured by that bargain $15 offering will be able to upgrade services, with a larger $40 bundle and specialty packs of channels (costing around $5 to $10 each) that are fine-tuned for kids, movies, sports, news, lifestyle, Spanish language content, and more.