Consider this for a moment.
A girl scout believes that if she collects all of the required badges, she'll become a superhero. Maybe that's the result of reading too many comic books while selling cookies, but that is neither here nor there at the moment.
The Mighty B! had just 40 episodes, spread over 2 seasons (2008-10), and played into the ground on Nickelodeon as a weekday entry. It sprang from the mind of actress-comedienne Amy Poehler (ex-Saturday Night Live, Parks & Recreation), who had created the character of Bessie in her standup act with the Upright Citizens Brigade and Second City. Poehler also voiced Bessie (naturally). The series launched on a Saturday, but I don't think it was part of the regular Saturday lineup.
Never saw it, since I work during the week, so we'll settle for the intro: