Other studios' offerings chipped away at the H-B Saturday dominance throughout the decade, such as H-B alumni Ruby-Spears Productions' "Alvin and the Chipmunks", Marvel and Jim Henson's "Muppet Babies", DiC and Columbia's "The Real Ghostbusters", and Film Roman's "Garfield and Friends". Additionally, the Saturday morning continued to see attempts to adapt prime time series for animation, some successfully ("Happy Days" and its spinoffs, "Mister T", ""), others less so ("It's Punky Brewster", "The Gary Coleman Show", "Little Rosie"). After three decades of resistance, Disney finally entered Saturday morning in 1985 when "The Gummi Bears" and "The Wuzzles" debuted with significantly more substantial budgets; the first-run syndication success of "DuckTales", which premiered in 1987, eventually inspired a whole block of Disney-produced syndicated cartoons which forced competing studios to improve their own production standards to compete.