This is the ad that Lynn Spigel analyzes in detail in her essay "Making Room for TV" in CIH, 259-267).
For this portfolio assignment, discuss one or more of the readings on television culture in CIH, pp. 220-251. What are the most important things you learned about the advent of "TV culture" for the study of Media Ecology?
Note: the french term, mise-en-abyme, that Spigel uses repeatedly to describe this ad is defined in a Wikipedia article here. You'll want to read up on it to understand what she means by this unusual term.