In a December 2011 edition of the New York Post, Claire Atkinson quoted Netflix CEO Reed Hastings as saying that the biggest challenge to the Netflix business model was HBO Go. HBO is a hugely profitable provider of premium content on cable channels, and HBO Go allows subscribers to view all HBO content anywhere using their laptops or smartphones with Android, iOS or Windows Phone 7. HBO Go is free to subscribers of the HBO cable service, and sign-up requires only that you authenticate a subscription through your cable service provider’s website. Authenticating your account can be a little tricky with smaller cable companies, but with major cable networks such as Cox and Comcast, authentication requires only a few mouse clicks. After you authenticate your account, download the app and start watching your favorite HBO programming anytime and anywhere.