This week in the ongoing race for customers’ loyalty and engagement between retail powerhouses Walmart and Amazon, the former may be looking to join in the streaming media space, where the latter is already well established.Walmart is said to be in discussions to purchase smart television maker Vizio for more than $2 billion. This potential deal aims to boost the retailer’s advertising business, with major chains increasingly recognizing the importance of consumer data and ad space as a factor in holding th ...