Both the doll and the cartoon? The doll back in 1986 was the first animated talking teddy bear that was sold in stores for sixty something and was a best seller, i had one for christmas when i was 5 in 1986 and it was one of my favorites. I also religiously watched the awesome cartoon back in 1987 at age 6 as it is one of my favorite cartoons of all time, it was made from DIC who made Real Ghostbusters, Sonic The hedgehog, Inspector Gadget, The Littles, Heathcliff and more.
I even had a crush on Grubby's sexy butterfly girlfriend Karen, she was a sizzler and they have some episodes on Youtube including the live-action pilot movie that aired in 1986 on ABC which has amazing puppetry and that kind of thing that blows CGI out of the water.