Someone at Fox thought that Plucky Duck would be the breakout star of Tiny Toon Adventures, which was airing 5, sometimes 6, days a week on the network. If they really believed that, then maybe they'd have pushed WB & Amblin Entertainment to make more original episodes of The Plucky Duck Show, which lasted one season as a result (1992-3).
Plucky (Joe Alaskey)'s adventures were cobbled together from reruns of Tiny Toons, seasons 1 & 2, which Fox, WB, & Amblin tried to pass off as all-new. Anyone that followed Tiny Toons, of course, knew better, which is why the series failed.
I never saw the show, so there's no rating, but let's leave you with the open, which itself recycles the Tiny Toons theme, but with Plucky-centric lyrics. Talk about on the cheap!