In a press release, Walmart wrote, "For the first time ever, all of Walmart's Cyber Monday savings will be available to customers starting Sunday evening, Nov. 29 at 8 p.m. ET.

The change is aimed at providing a simpler and more convenient experience for customers who are searching the Web on Sunday night and often waiting up past midnight to do their shopping.

Google searches for the term "Cyber Monday" clearly surge on Monday, but there is also a significant spike on Sunday evening. And, historically, when Walmart released select Cyber Monday deals on Sunday evening, traffic increased significantly.

Some of the bigger discounts include a Samsung Galaxy smartphone for $99, down from $350, and a Dell laptop for $319, down from $449.

Also, a Samsung LCD TV is selling for $498, marked down from the list price of $700.

And Walmart is selling an Air Hogs Video Drone, which normally costs $109, for $75.