If you mean simply existing on the air, The Flintstones debuted in 1960 but only lasted 6 years ending in 1966 but aired in syndication & reruns on Boomerang until March 2017 & now [September 2017] streaming on Boomerang's streaming service.
Sesame Street however has been airing new episodes since its debut in November 1969 & continues to do so today.
So bottom line, Sesame Street has been on decades longer w/ new episodes but The Flintstones has existed longer on television.
The Flintstones lasted longer on the air, simple as that.
Sassy, the pet cat of the Flintstones, appeared in several episodes of "The Flintstones." Notable appearances include "The Flintstones and the Jetsons" crossover episode, "The Jetsons Meet the Flintstones," and the episodes "The Hot Piano" and "The Great Gazoo." Sassy often provided comic relief and interacted with both the Flintstone and Rubble families.
November 9, 1987
"The Honeymooners" was an inspiration for The Flintstones cartoons .
No. The Flintstones originally aired on ABC from 1960-1966.
The Jetsons Meet the Flintstones was created on 1987-11-09.
The Flintstones lasted longer on the air, simple as that.
The original Jetsons cartoon remains one of the most beloved and well-watched of all classic animation series, right up there with Scooby Doo and The Flintstones.
Sassy, the pet cat of the Flintstones, appeared in several episodes of "The Flintstones." Notable appearances include "The Flintstones and the Jetsons" crossover episode, "The Jetsons Meet the Flintstones," and the episodes "The Hot Piano" and "The Great Gazoo." Sassy often provided comic relief and interacted with both the Flintstone and Rubble families.
The Jetsons- also a Hanna-Barbera production.
The cast of The Jetsons Meet the Flintstones - 1987 includes: Hamilton Camp as Turk Tarpit Penny Singleton as Jane Jetson Brenda Vaccaro as Didi Patric Zimmerman
The Flintstones, The Jetsons, Tom & Jerry, Top Cat...
The Jetsons came first. The original Jetsons series originally aired on ABC from September of 1962 to March of 1963. Scooby Doo came out in 1969.
November 9, 1987
Huckleberry Hound , The Flintstones , Yogi Bear , Jonny Quest , The Jetsons and Scooby-Doo .
Perhaps you are referring to "Aunt Eckler" in the TV show, "The Jetsons".
1963 .