I have followed the Up Series for decades, although fewer than six, and I am truly sorrowful at its end. When I was young they felt so far away from me and as I've gotten older I felt as though I have been catching up.
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>>We get wise too late,
>>and old too soon.
>>–Danish proverb
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Everybody I've ever recommended the "7 Up" series to has thanked me. I rewatch them all, every few years – my first viewing was right before my own 21st birthday (decades ago).