You're right, in 1980 the average manufacturing worker had to work 68 hours to buy a TV that would last 20 years.
Guy - you keep saying this. TV's with CRT's don't last 20 years and never have (unless they only got turned on a few hours a week). The CRT that will last 20 years based on the time a TV is on in US households/day has yet to be invented and never will be (You might be able to get a CRT to last 10 years maybe but even then the electron guns are weak, the picture dim, impossible to tune for good color - and you wouldn't want one). In addition the TV's you respect so much built 20 years ago were by then mostly solid state. Transistors/IC's last longer than tubes but they don't last 20 years - especially not the commercial grade devices used in TV manufacture. Your 20 year TV is a pipe dream and typical hyperbole.
And on an inflation adjusted basis TV's today cost about a 1/4th of what they did 20 years ago. They're cheaper to get as a percent of your typical household income than ever. Hell they've almost reached the point of just toss it out when they break and buy another they're so cheap. Look in the yellow pages for TV repair shops. They're out there but not many. Grab a yellow pages from 20 or 30 years ago and look at the difference.
There's a reason there are no longer any TV's manufactured in the USA and it isn't Walmart - it's that the Japanese can design 'em better and the chinese build 'em faster and cheaper.
Your neighbors aren't out of work because jobs were exported they're out of work because they didn't change with the times, get the education they needed to fill the high tech jobs in the USA and that we excel at or stayed with a union that priced themselves out of the market.
In short they failed to adapt (just like a lot of mom and pop shops trying to compete with Walmart failed to adapt) and Darwin had 'em for dinner.