Why is Flintstones Cereal still a thing when the cartoon has been gone for decades? (Where's the Jetsons Cereal 😂)?

I laughed today when I saw an ad for Flintstones cereal. (I've never had it either. It was on my mom's "no junk food" list.) It surprises me that they haven't put the cereal out to pasture when the show has been off the air for over 20 years. I mean... it was already in reruns when I was a kid, with a new series that came around. All I remember is that it was totally the cartoon version of The Honeymooners. (I liked it, but loved the Jetsons more...)

(Funny enough, it's been a reference point even with my 25yo cycling instructor, who said that to start off on a bike you should take a few steps "yabba dabba doo". I laughed so hard.)

Going back to the main question, why's the cereal suddenly being advertised every few minutes? Is there a new movie coming out or something?

Why is Flintstones Cereal still a thing when the cartoon has been gone for decades? (Where's the Jetsons Cereal 😂)?
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