Amazon's Black Friday sale went live Nov. 21 (a full week before Thanksgiving), ushering in some year-round lows on robot ...

Walmart's second Black Friday Deals event kicked off on Monday, Nov. 25 with a $178 55-inch 4K Roku TV, $29 JBL ...

Some deals are price-matched across stores, while other deals on certain products are exclusive to one store or another.