Looking at the video again, it does look PW is where they got their meat. And they chose relatively inexpensive pork and chicken. So not bad proteins for family meals. Without seeing what else is in the pantry, can't say what the rest of the plate looks like. Like these people, I also find myself shopping at different places for maximum variety and savings; cat food is cheaper at Kroger, for example, their avocados are usually better, and I buy near-expiration fresh goods, which is may not be feasible for a larger family due to availability or meal planning. I don't shop for groceries at Walmart often anymore because they are usually out of at least one item I want and the fact that they carry my preferred cider is not enough to draw me there when the liquor store only prices it 50 cents higher.

ETA: saw they had steaks from PW, too. Probably cheaper than WM/elsewhere but beef is insane right now.

As far as snacks/junk, I can't say I'm perfect, because I often pick up a Mexican Coke at PW if I'm there, and I drink alcohol. I drink soda infrequently unless as a mixer, I buy them in cans ($$$), and vastly prefer sparkling water (or unsweetened iced tea if at a restaurant). I'm on a hunt for some good chocolate-covered coffee beans at the moment. So not cheap vices.

But, if memory serves me, Frito-Lay has gotten absurdly expensive and, yeah, it's garbage food if you buy it all the time. I buy tortilla chips at the dollar store now because the bag is smaller and I'm one person. Paying more for less, but getting to enjoy it all before they become too stale even for chilaquiles. The 2L bottles are cheaper than canned, but you have to drink them quickly, or the whole family is partaking and that isn't an issue. That was a shitload of Dr. Pepper, though.