Where on Earth Is Carmen Sandiego? video game entitled "Carmen Sandiego Junior Detective." Its theme tune bears a close resemblace to the chorus 'Singt der großen Bassa Lieder' ('Sing songs of the great Pasha') from Mozart's opera "Die Entführung aus dem Serail" ("The abduction from the Seraglio") The script for every "Earth" episode had to meet the approval of Brøderbund Software, which created and, at the time, owned the "Carmen" franchise. Their cause for concern was the level of the violence on other FOX children's shows such as "X-Men" and "Mighty Morphin Power Rangers." Brøderbund did not require this of the creators of the "World" and
Jean Fenn theatre program which was run by renowned Russian tenor Vladimir Rosing. Fenn also studied privately with Amelita Galli-Curci and her husband Homer Samuels in California. She later received vocal coaching from Sigmund Romberg and Erich Korngold. In 1949, while still a student, Fenn sang in her first opera with the Hollywood Reading Club portraying Blondchen in "The Abduction from the Seraglio" and that same year appeared in productions with the Guild Opera Company of Southern California. She made her debut with the San Francisco Opera on October 10, 1952 as Musetta in Giacomo Puccini's "La Bohème" with Bidu Sayão as