Final answer:
The question refers to a character named Pam staying up late to edit a commercial and requires context from the source material, which is not provided, so a specific answer cannot be given without more information.
Step-by-step explanation:
The question "How late did Pam stay up editing for the commercial?" likely refers to a character named Pam from a given narrative, possibly a book, a television show, or a film. To answer this question directly, we would need context from the source material, as the time Pam stayed up editing would be a specific detail from that narrative.
However, without the proper context or source, we cannot provide a specific answer. If this question is part of a larger discussion in a class, such as an English or Arts class analyzing a piece of media, the answer might be found by reviewing the relevant chapter or episode.