Offering much exclusive content but also drawing from CBS platforms, the 24/7 ad-supported channel will offer an original newscast 15 hours each weekday from 9 a.m. to midnight, with its own lineup of anchors. With Amazon and Microsoft already on board as major advertisers, the channel will demand that marketers determine how best to engage the Internet-connected consumer via smartphone, tablet, connected TV or other devices. 

?CBSN is an example of the company's commitment to providing premium content on multiple platforms and meeting audience's preferences for how and when they want to consume media,? said Chris Castro, spokesperson for CBS Interactive.

?We'll be able to deliver custom ad integrations for what we expect will be an extremely engaged audience. We think you can expect a range [of campaigns], from advertising integrated into the stream, to unique custom ad integrations,? he said.

The first major advertisers include Amazon and Microsoft. ?Other advertisers will also run across all devices,? Mr. Castro said. 

Other CBS platforms providing content will be CBS News, CNET and CBS Sports.com.

With the launch of CBSN, CBS is acknowledging the importance in the mobile age of providing audiences with premium, original content that offers them quality as well as control over their viewing.

?Across all platforms CBSN provides DVR-like functionality so viewers can watch segments they choose and then shift seamlessly to live programming,? Mr. Castro said.

CBSN will be available on CBSNews.com and its mobile Web site, connected TV devices including Amazon Fire TV, Roku players and Roku TV. It also can be accessed through the newly launched CBS News app for Windows 8/8.1 and Windows Phone 8/8.1 available through the Windows Store and Windows Phone Store. 

The channel will be available on the CBS News apps for Android and other leading platforms before year? end.

 

The service will target both traditional news consumers and a new set of viewers.

?We think our strategy provides significant benefit to both viewers and advertisers,? Mr. Castro said.

Reflecting the outreach to the mobile audience via an emphasis on live news coverage, CBSN?s slogan is: ?CBS News. Always on.?

 

The channel aims to take advantage of the interactivity of digital platforms through a video player and on-screen interface.

It gives viewers the full flexibility within each hour to control what they watch and when they watch it via DVR-like functionality that allows them to watch previous segments and jump back into live programming seamlessly and across devices. 

 

Viewers also receive personal choice and control through DVR-like functionality that enables them to watch segments in which they are interested or tune into live programming seamlessly.

They also will be able to share content from the experience through social media accounts with compatible devices.

 

The live, linear stream will be led by both veteran and new CBS News correspondents.

 

?If this takes off, others will quickly move into the same space,? said Chuck Martin, CEO of the Mobile Future Institute. ?Then again, someone always has to be first to pave the way and determine if there?s a viable market for news via mobile, at least at this time.

?Mobile consumers are increasingly turning to video on the smartphones, as many studies have shown,? he said. ?Rather than watching long-form videos, such as movies, consumers are more likely to turn to their phones for quick-hit videos, which is where CBSN can fall. 

?The key to success will have to be currency, so it will have to be very live, since there are so many non-video sources in essentially real time."