 When "Phineas and Ferb" officially debuted in February the next year, it proved cable's number one watched animated series premiere by "tweens".Throughout the first quarter that followed, it peaked as the top-rated animated series for ages 6–10 and 9–14, also becoming number three animated series for all of cable television for viewers age 6–10.By the time the commissioning of the second season was announced in May 2008, the series had become a top-rated program in the 6–11 and 9–14 age groups.