Inevitable given his age, but still-

.
Having been born a couple of years after Hanna-Barbera productions was founded, I can say without exaggeration that I grew up on its TV product. While recently helping clean out my parents' house, I found a photo of me, age 3-, wearing a Huckleberry Hound T-shirt. Somewhere there must be a stuffed Pixie Mouse I now recall.
A true Hanna-Barbera devotee will 'hear' sound effects in everday situations: clattering during a search in the refrigerator; a loud ricochet and
pitter-pattering when running to catch the bus; a juicy
splat! when spooning oatmeal into a bowl. Likewise, it's hard not to hear an appropriate 'Capital', Curtin or Nichols whilst driving, strolling, working hard (usually the FLINTSTONES' 'Fred working in the quarry' theme), sensually aroused (any time a female is seen in a 'Classic 24' JETSON episode) or encountering a pristine natural scene.
When one considers all the animation production houses throughout TV history- KFS, Ward, Format, Total, Seeger, Rankin-Bass, Ken Snyder, Cambria, Filmation, DFE- Hanna's and Barbera's achievment of maintaining a studio for more than forty years is that much more remarkable. Only Rankin-Bass can claim anything close to such longevity, albeit with much less product (primarily seasonal specials in recent years).
Any body of work lasting that long naturally contains some inferior quality and over-reliance on forumlas. Hanna-Barbera is no exception- particularly from the mid-seventies through early eighties. But their track record of memorable characters and series cannot be disputed. Their 'pure creations', including Yogi, Huck, Snagglepuss, the Flintstones, Top Cat, the Jetsons, Magilla Gorilla, Jonny Quest, Atom Ant, Space Ghost, the Banana Splits, Dick Dastardly and Scooby-Doo are all pop culture icons whose images are endlessly marketed and even parodied.
Like most other animation studios, Hanna-Barbera also adapted established properties with varying success: Sinbad Junior, Laurel & Hardy, Abbott & Costello, the Fantasic Four, the Three Musketeers, Huck Finn, Gulliver, Josie, the Harlem Globetrotters, Charlie Chan, the Addams Family, Jeannie, the Partridge Family, Godzilla, Popeye, Casper, the Fonz, the Smurfs, Pac-Man, Richie Rich, the Little Rascals, Ed Grimley-
phew! Just as Disney has put its imprinteur on many literary franchises, there are many people who erroneously belive H-B created the Smurfs- so indelible is their touch.
I have too many favorite H-B characters to attempt to list them all. Having recently acquired digital cable and Boomerang

as well as a DVD player, I've gained a new appreciation for the edgy writing and direction, and enthusiastic voiceover work for some of their earlier work that was often overlooked over years of reruns on Saturday AM and syndication (remember them?). The nightly block of TOP CAT, THE JETSONS and THE FLINTSTONES is a marvelous way to unwind from a long day of work at age 47.
So long, Joe. (Cue your favorite FLINTSTONES episode-ending cue.) At least you're reunited with Bill, Ed, Hoyt, Daws, Don, Jean, Mel and many of the others who gave us so much fun and joy.