What set will last the longest?

[peverett]

As to which 1950s/1960s sets would possibly die the soonest, I have an answer to that also. I got some early 60s small GE portables from a TV shop that I cleaned out. GE mounted all the tubes on printed circuit boards(even the combination horizontal output/damper). A couple of these had not been used much, so I got them going again. The others had totally charcoaled boards.