Once again, your goal in this thread was to contradict the idea that Walmart saves consumers tens of billions of dollars by saying that because the quality of the stuff sucks, people don't actually save anything--it just breaks and they have to replace their cheap crap with more cheap crap. Correct me if I'm misconstruing what you said.
Why does it matter that the RCA TV was top of the line in 1969? The point is that someone paid the equivalent of $6,000 for it. People don't spend $6,000 on TVs at Walmart. Accordingly, there should be no expectation that a TV costing 1/40th as much will last for 40 years. That it costs 1/40th as much is how consumers save money regardless.
If you want to pick a more expensive TV for comparison purposes, so be it. But picking a top of the line TV makes no sense--there would be a quality expectation. Walmart doesn't sell the TV you're talking about, nor those even more expensive TVs, so I fail to see what any of them have to do with whether or not Walmart saves consumers money.