QVC is currently working with interactive TV consultancy Ensequence on new functionality that will enable some 12 million Comcast customers to purchase items using their TV remote controls.  The feature will employ emerging Enhanced Binary Interchange Format (EBIF) technology, and require customers to pre-register their credit card information at QVC.com.  HSN unveiled similar functionality in 2008, while number three DRTV network ShopNBC is eschewing shop-by-TV-remote in favor of smart-phone-driven m-commerce applications.  MediaPost Jul. 26, 2010