Walmart is currently selling the Sceptre 75-inch 4K Smart LED TV for just $999. That is good for a whopping $800 off of its regular price, and makes this the cheapest 75-inch 4K TV on the market right now. So you'll want to pick it up before it's gone.
This TV from Sceptre is a pretty good one to pick up, if you're looking for a big TV, below $1000. This is a 75-inch 4K or 2160p resolution TV. But it does not have HDR included, that's one of the features you'll have to go without with this TV. Additionally, it is only 60Hz versus 120Hz. That's not that big of a deal, and you likely won't even notice the difference unless you are watching sports. Spectre has four HDMI 2.0 ports included here, a composite, component, optical and an Ethernet port included as well. So you are able to hook it up to your router and get faster speeds for streaming 4K video over your internet connection.
Walmart does not carry these in its stores. So you will need to have it shipped. But there are two options, you can have it shipped to store (which will take about a week) or have it shipped to your home for $19.97. Having it shipped to your home is likely the better option here, given how large this TV really is. Walmart does also charge taxes, and those will vary based on where you live.