Comedy 101: dumb = funny

Three clips covering about 75 years: each is funny, each uses wordplay & the vagaries of semantics to be funny. In the short story “Pierre Menard, Author Of TheĀ Quixote,” Jorge Luis Borges wrote about what he called “the plebeian pleasure of anachronism…the elementary idea that all epochs are the same or are different.” Do you think these clips, while all related in some ways, illustrate differences about the lives and times they were created in/for? Do they show us the more things change, the more they stay the same? Are they just people being funny?