The bulking up of a second giant would shake up the cable industry, which is struggling to keep pay-TV subscribers as all-digital rivals emerge.
The cable giant is eyeing acquisitions and investments in the land of new media as a way to win over younger people who don't watch as much traditional TV, says the Wall Street Journal.
Dubbed Stream, the service will let Comcast's Xfinity Internet customers watch HBO and a handful of standard broadcast networks via their PCs and mobile devices.
Their test project offers cable customers a way to play video games through set-top boxes using their smartphones or tablets as controllers.
With Comcast uninterested, satellite TV provider Dish remains the most likely suitor for the wireless carrier.
Technically Incorrect: A 79-year-old New Mexico woman makes a mistake. Initially, Comcast refuses to refund her the money back in cash, instead offering a credit on her account.
Technically Incorrect: Comcast, Time Warner and Charter make a poor showing for cable TV service. And as for Internet Service Providers, oh, don't ask.
Charter Communications' deal to merge with Time Warner Cable comes after Comcast's bid crumbled under regulatory scrutiny. But Charter and TWC say that won't happen twice.
The nation's largest cable provider has confirmed plans to deliver Ultra HD content to its subscribers via a new set-top box called the Xi4 later this year.
Cable company is trying to shake its infamous reputation for providing the worst customer service on the planet with a new initiative it says will be focused on customer needs.