Although the Xbox One was a success with some followers, it has been outsold by Sony's Playstation 4. Microsoft hopes the value drop will boost gross sales. It hired former CBS boss Nancy Tellem to head up its new Television studio, which can produce shows to be watched on the agency's Xbox games console in addition to its mobile gadgets. Spencer added that it not made sense to reserve apps such as Netflix and YouTube to paying subscribers since such apps are widely accessible on DVD…