The flash sale will happen every day at 5PM ET, right at this link. You’ll have to be fast, as the sale today — which wasn’t as widely advertised — sold out in minutes. To get your hands on the console, you’ll probably want to pre-create a Walmart account and enter your information, make sure you’re logged in, and start hitting refresh. (You can also download Chrome extensions to auto-refresh your page every couple of seconds, if you’re feeling lucky.) Experience gained buying concert tickets also tells me that having a couple different devices ready to go will also be helpful.
That means you should have your ecommerce finger ready to go within the hour on this page if you want to snag one at the $60 price.