CBSN is a streaming video news channel operated by the CBS News and CBS Interactive divisions of ViacomCBS, which launched on November 6, 2014. CBSN is designed primarily as an online-oriented service; it is distributed solely through the cbsnews.com website, mobile apps, and via apps for digital media player devices such as Amazon Fire TV, Apple TV, and Roku, rather than traditional platforms such as television, broadcast or otherwise. Since September 21, 2015, some CBSN segments are repurposed on the CBS television network as part of CBS Overnight News. The ad-supported service primarily features content from CBS News along with other CBS-owned properties, hosted during much of the day by various CBS News personalities, along with coverage of breaking news and live events. CBSN also serves as a timeshift channel, carrying some CBS News programs on a short delay. CBSN is designed primarily to appeal to a younger audience with a format allowing viewers to watch it as a live, linear stream, or to watch program segments on-demand.