NBCUniversal already has big things in the works with its upcoming streaming service Peacock. But, those streaming ambitions may be growing as NBCUniversal reportedly sizes up Walmart's free streaming service and movie rental site Vudu for purchase. [caption id="attachment_876404" align="alignright" width="360"] Image via Vudu[/caption] On Friday, Variety reported (via the Wall Street Journal) on NBCUniversal's possible new acquisition. We know via sources speaking to Variety that NBCUniversal is currently in talks to buy Vudu. It's still uknown what the terms of the purchase would be or when the purchase would go into effect. …