Charter's TV Everywhere platform received a big boost with the recent addition of video content, both online and via mobile apps, from Turner Entertainment Networks.

With the new agreement, more than 4 million Charter subscribers now have access to more than 500 hours of video entertainment from the likes of TBS, TNT, truTV, Cartoon Network and Adult Swim – at no additional cost.

Charter ScreenShotCharter customers can view the content online and via mobile apps via the company's Web portal and Turner websites. As is the case with most of cable's TV Everywhere services, Charter customers must be subscribers of the various Turner networks before they authenticate themselves prior to viewing.

"Charter customers will enjoy the wide range of entertainment Turner brings to the table," Rich DiGeronimo, Charter's senior vice president of product and strategy, said. "Over the past several weeks, Charter has expanded choice and increased convenience for our customers by adding great movies and shows and organizing online content into a single online directory on"

Charter subscribers can access the video content via iPhone and iPad mobile apps, while Android apps are planned for launch early this year. Live streaming is also available from CNN and HLN's 24-hour television networks.

To access online content, Charter Internet customers need to use their email address, password and zip code for the first time. Charter TV customers can log in with their "My Account" credentials.

Charter first tested its TV Everywhere platform in 2010 with a trial that included shows from TNT, TBS, Style, E!, G4 and The Weather Channel.

Last year, Charter added video content from HBO Go and Max Go, as well as BTN2Go and ESPN3, to its Web portal.

In November, the nation's fourth-largest cable operator announced it had integrated video searches from Netflix, Hulu and Amazon into

Turner Broadcasting System, a Time Warner company, was an early provider of TV Everywhere content to Comcast in 2009.