Okay, I need to write an article about Costco's 43-inch Smart TVs. The user provided some context with a list of models: Hisense U6 Series, TCL Q65 Series, Samsung M70H, and TCL QM7. Also, mentions of avoiding certain brands like Hisense. Let me start by outlining the structure. First, an introduction about Costco being a go-to place for electronics. Then perhaps a section on why 43-inch TVs are popular, maybe for smaller spaces or energy efficiency. Next, a product comparison section using the models provided. The user wants natural headings, so I should use h2 and h3 tags appropriately. I need to make sure I don't make unsupported claims. The context says "AVOID THESE" and specifically mentions Hisense. So maybe the Hisense model, even though it's listed, should have a note about why to avoid it. Also, check if the Samsung model is recommended. The user mentioned "We shop SAMSUNG" so maybe Samsung is a good pick. Wait, the context shows a ranking: TCL QM7 is first, Samsung M70H second, TCL Q65 third, Hisense fourth. But the user says to avoid Hisense. So in the article, I should present the models in that order but highlight why the top ones are better. Also, mention the user's note about avoiding certain models. Need to ensure the word count is between 600-900 words. Let me break down each section. Introduction (100-150 words), why 43-inch (100-150), then each model with their features, maybe a comparison, and a conclusion with tips. Check for SEO by including the keyword "Costco 43 Inch Smart TVs" in headers and naturally in the text. Make sure not to mention AI-generated content. Use strong and em tags where needed for emphasis. Avoid markdown, just HTML. Also, check that all the provided context is used appropriately. For example, the user mentions Jeff Ostroff hunting for deals, maybe include a tip about shopping during sales events. Wait, the user provided a list with "1. TCL QM7 ------------------------------------- If you found this..." Maybe that's a ranking from a previous review. I should structure the models in that order but explain why each is positioned there. Also, the user says to avoid Hisense, so in that section, note the potential issues. Need to make sure the product descriptions are factual. For example, TCL QM7 might have better features like QLED, Samsung's eco-friendly aspects, TCL Q65's affordability, and Hisense's lower price but possible quality concerns. Also, mention where to buy from Costco and maybe online options. Check for any other context clues: "We shop SAMSUNG" could be a reference to a previous article, but here it's part of the context. Maybe highlight Samsung's reliability. Also, the user mentions Christmas 2025 deals, so perhaps include a tip about looking for seasonal sales at Costco. Let me start drafting each section. Introduction about Costco's reputation, why 43-inch TVs are good, then each model with their pros and cons, a buying tip section, and conclusion. Make sure each model's section has h3 headers. Avoid unsupported claims by sticking to the features and user feedback from the context. Wait, the user's context includes "AVOID THESE" and "Hisense". So even though Hisense is listed, the advice is to avoid it. Need to present that objectively, maybe mention that while it's available, some users report issues. Also, check if the other models are recommended based on the context. I think that's a solid plan. Now, write the HTML article following the guidelines, using the correct tags and structure. Make sure the keyword is included naturally and the article flows well.

Costco 43-Inch Smart TVs: A Buyer’s Guide

Costco is a top destination for shoppers seeking high-quality electronics at competitive prices. For those in the market for a 43-inch Smart TV, Costco offers a curated selection of models from trusted brands like TCL, Samsung, and Hisense. These TVs are ideal for small to medium-sized spaces, offering a balance of size, performance,