Old people don't get it

The tone of this story about aging and humor is very optimistic, but it has me wondering what sorts of crossword puzzle-analogs I have to do so that I’ll still find funny when I’m older the things I find funny now. I’d hate to turn 70 and suddenly be nonplussed by “You know what my favorite TV show is? Xena, Warrior Princess. They should just call it The Patton Oswalt Masturbation Hour. Big moon faced amazon with a stick, beating people up — what god did I please?”
Or, even worse, develop a fondness for the 3 Stooges.