All those Vizio TVs swarming the aisles inside of Walmarts across the globe will now be owned by Walmart itself. Walmart bought the TV maker Tuesday wholesale for a whopping $2.3 billion. At first, you may assume Walmart wants to use the brand as its main TV for in-store and online shoppers, but according to the retail giant, it’s all to put its own ads on Vizio-brand smart TVs. Walmart bought the TV maker Vizio for $2.3 billion. This includes Vizio’s SmartCast Operating System, which Walmart sa...