In terms of content, I have only one suggestion here. It has to do with the final sentence of your introduction. Throughout this review, you say that the show is about weight gain and about society’s view of obesity. Your conclusion focuses on this as well. In your last sentence of this introduction, by contrast, you are talking about emotions and relationship issues. Those do appear in the rest of the review, but only inasmuch as they are connected to weight gain. You should bring up the idea of weight and obesity here in the introduction.
My only other comment is the sentence that starts “It delineates…” and the sentence after this. These sentences are taken almost word for word from a website that I easily found by Googling one of the phrases. In one of your previous postings of this essay, I said those words did not sound like your writing. You really should change these two sentences or quote and cite them properly. You endanger your grade by having unattributed quotes or close paraphrases in your review.
Outside of these concerns, this is a good introduction.