Comcast and Charter Just Made a Deal: Here’s how it will affect you.

Maybe you've heard: Charter Communications is teaming up with Comcast. The two cable companies are working together to protect their nascent cellphone businesses from huge, national providers — such as Verizon and AT&T — by largely refraining from going after each other. Under the deal, Comcast and Charter have temporarily agreed not to take actions that could compromise each other's new offerings, such as selling mobile-phone service to consumers outside their respective cable footprints or trying to buy up existing cellphone carriers such as Sprint or T-Mobile.

Essentially, it's a deal by cable giants to shield their early investments in an industry they're just beginning to explore. But this detente, while it may seem like a small announcement, has some important implications for cellphone service, television and online media. Here's why it's such a big deal.