Attention: QVC Shoppers! Open up those home equity credit lines because shopping online is about to get faster and easier! On Tuesday, Scott Dunlap, vice president of emerging opportunities with PayPal, announced a new partnership with Comcast and TiVo. What could a cable giant, a DVR maker, and an online payment processor possibly do together? Let you buy stuff directly from your television, that's what! This means that you'll be able...