WOW 50 and still going strong the world over! Probably one of the most loved cartoons in the world.
Just commenting with my parents - they used to watch them as kids. My brother and I used to watch them as kids. and now my two nephews (5yrs and 3yrs) watch them daily! Spanned three generations. And my nephews are big time fans. They've even gone to a Flintstones themed min-park up the road on the Costa del Sol a few times and they never tire of going there.