Question: How much did this American animated TV series and media franchise for which Kris Zimmerman directed episodes, gross worldwide in retail sales?
Sentence (from "Oscar's Orchestra"): The series was produced by the popular British animation studio Collingwood O'Hare Entertainment (who is also famous for producing other such animated TV series and films as "Dennis the Menace", "Captain Zed and the Zee Zone", "The Secret Show" and "Rarg") in association with Warner Music Vision and Europe Images and was originally shown on the BBC as part of their children's block CBBC.
Relevant evidence: No