Re: Starting on the Museum exhibits, ending on them.
But even with TVs there is now no benefit to having skills and knowledge of their internal workings unless you work for the likes of Sony or LG - there are no more repair shops on the high street.
Your TV blows you don't take it in for a new valve, you throw it in a skip and nip down to the only electronics retailer in the retail park for a shiny new 50" OLED (or whatever the latest fad is)
Similar with PCs, they slow down people don't ask you to install more RAM or reinstall Windows ME (why did every Packard Bell seem to have this mess?), they throw them in the skip and buy an iPad.