Context: Frustration with censorship and editorial interference led to a group of Pilote cartoonists to found the adults-only L'Écho des savanes in 1972. Adult-oriented and experimental comics flourished in the 1970s, such as in the experimental science fiction of Mœbius and others in Métal hurlant, even mainstream publishers took to publishing prestige-format adult comics.

Question: Pilote cartoonists were upset with censorship and what?
Answer: editorial interference

Question: When was L'Écho des savanes begun?
Answer: 1972

Question: Métal hurlant was of what genre?
Answer: science fiction

Question: What format did adult comics begin to be published in?
Answer: prestige

Question: Pilote cartoonists were happy with censorship and what?
Answer: Unanswerable

Question: Pilote readers were upset with censorship and what?
Answer: Unanswerable

Question: When was L'Écho des savanes ended?
Answer: Unanswerable

Question: Métal hurlant wasn't of what genre?
Answer: Unanswerable

Question: What format did child comics begin to be published in?
Answer: Unanswerable