# Pixel & Sofa Lab > Pixel & Sofa Lab is an independent guide to television and display fundamentals, room-aware buying, practical picture setup, connections, gaming, glare control, and safe installation. It explains technology by category and never invents model specifications, prices, or performance results. Pixel & Sofa Lab publishes original, long-form guides about tv display guides. Every article opens with a concise direct answer, is structured with clear headings and FAQs, and reflects mainstream expert consensus. Health-related content is educational and encourages professional consultation where appropriate. ## Setup & Buying - [How to Tune a TV Without Calibration Tools](https://viziooptic.com/calibrate-tv-without-tools/): Without instruments, tune a TV by controlling room light, choosing a restrained cinema-style preset, and using reputable patterns to verify overscan,… - [How to Choose TV Size for a Room](https://viziooptic.com/choose-tv-size-for-room/): Choose TV size by marking each candidate's exact published width and height on the wall, then viewing that outline from every real seat. - [How to Compare TVs in a Store Fairly](https://viziooptic.com/compare-tvs-in-store/): Compare TVs in a store using the same source, content, viewing distance, input, and comparable home cinema-style modes. - [First TV Picture Settings to Change](https://viziooptic.com/first-tv-picture-settings/): For a new TV, choose home mode and begin with a restrained cinema-style preset. - [HDMI ARC vs eARC for TV Audio](https://viziooptic.com/hdmi-arc-vs-earc/): HDMI ARC returns TV audio to a compatible soundbar or receiver over HDMI. - [How to Measure for a TV Before Buying](https://viziooptic.com/measure-tv-before-buying/): Before buying a TV, record the exact model's width, height, depth, stand footprint, weight, mounting pattern, ventilation clearance, port locations, and… - [How to Reduce TV Glare in a Bright Room](https://viziooptic.com/reduce-tv-glare/): Reduce TV glare by sitting in every viewing position with the screen off and mapping reflected windows, lamps, bright walls, and glass. - [TV Game Mode and Input Lag Explained](https://viziooptic.com/tv-game-mode-input-lag/): TV game mode reduces input lag by disabling or simplifying picture processing between a source signal and the visible image. - [TV HDMI Ports Explained by the Job](https://viziooptic.com/tv-hdmi-ports-explained/): TV HDMI ports may look identical while supporting different audio-return, gaming, refresh-rate, HDR, or bandwidth features. - [How to Plan a Safe TV Wall Mount](https://viziooptic.com/wall-mount-tv-safely/): Plan a safe TV wall mount from the exact television and mount manuals. ## Picture Technology - [Glossy vs Matte TV Screens](https://viziooptic.com/glossy-vs-matte-tv-screen/): Glossy TV screens usually keep reflections sharp and directional, preserving a clear, high-contrast look when room light is controlled. - [LCD vs OLED TV: The Useful Differences](https://viziooptic.com/lcd-vs-oled-tv/): LCD TVs control a separate backlight through a liquid-crystal layer, while OLED pixels emit their own light and can switch off individually. - [TV Local Dimming Explained](https://viziooptic.com/local-dimming-explained/): Local dimming divides an LCD television's backlight into controllable areas. - [Mini-LED TV Explained Without the Confetti](https://viziooptic.com/mini-led-tv-explained/): A mini-LED TV is typically an LCD television using many small LEDs in its backlight. - [TV Black Level vs Contrast: Which Control Does What?](https://viziooptic.com/tv-black-level-vs-contrast/): TV black level and contrast are related but not interchangeable. - [TV Color Temperature Explained](https://viziooptic.com/tv-color-temperature-explained/): TV color temperature sets whether neutral whites lean warm toward red or yellow, or cool toward blue. It affects the entire picture, not just white objects. - [TV Motion Blur vs Judder](https://viziooptic.com/tv-motion-blur-vs-judder/): Motion blur reduces moving detail; judder makes frame timing uneven; stutter exposes the steps of low-frame-rate content. - [TV Refresh Rate Explained Clearly](https://viziooptic.com/tv-refresh-rate-explained/): TV refresh rate is how often the panel can present an updated image each second, expressed in hertz. - [4K vs 1080p TV: When Resolution Shows](https://viziooptic.com/tv-resolution-4k-vs-1080p/): A 1080p picture can look very good on a 4K TV. The television or an upstream device scales the 1,920-by-1,080 signal to the panel's 3,840-by-2,160 grid,… - [TV Viewing Angle: What Changes Off-Center](https://viziooptic.com/tv-viewing-angle-explained/): TV viewing angle describes how picture quality changes away from the central seat. - [What HDR Means on a TV](https://viziooptic.com/what-hdr-means-on-a-tv/): HDR television combines a wider-range video signal with a display capable of mapping bright highlights, dark detail, and color into its real hardware limits. ## Full text for LLMs - [llms-full.txt](https://viziooptic.com/llms-full.txt): every article as plain markdown in one file - Each article is also available as markdown at https://viziooptic.com/.md ## Site - [About](https://viziooptic.com/about/): editorial approach and standards - [All articles](https://viziooptic.com/all/) - [Contact](https://viziooptic.com/contact/)