Walmart just closed its acquisition of popular television maker Vizio in an effort to boost its advertising business. The acquisition was initially reported back in February; however, it took a few months to complete due to the waiting period under federal regulations. The all-cash deal is valued at $2.3 billion.  With this strategic move, Walmart aims to become a leader in connected TV advertising. By integrating Vizio into its advertising platform, Walmart Connect, the retail giant is positioning itself ...