 Streaming alliances are on the agenda. Sports will play a major role, too. Live sports rights are valuable, luring in big audiences. Target will stop accepting personal checks at the checkout on Monday. They say not enough people are really using them. Walmart's Deals for Days sale is on, running through Thursday, up against the Target Circle Week sale. And it's all designed to head off the Amazon Prime Day sale that runs for two days, next Tuesday and Wednesday.