The Secret Lives of Waldo Kitty (1975)

The program begins by introducing three live-action animals: Waldo, a cat; Felicia, his girlfriend cat; and Tyrone, the mean bulldog. When Tyrone becomes a threat to Felicia's safety, Waldo, a coward at heart, envisions himself as her heroic savior. Animation takes over, and each week features Waldo as a different hero struggling to protect Felicia from harm.