What are the parameters for buying TV in 2017? The six most overlooked parameters are very important!

When it comes to smart TVs, the higher the model, the more manufacturers tend to promote their features in a persuasive and almost hypnotic way, making consumers feel like they *must* buy. This can lead to passive purchasing decisions. To avoid overspending on subpar products, it’s essential for buyers to understand key TV specifications and make informed choices. **Screen Quality: A Level is the Base, A+ is the Best** The screen is one of the most expensive parts of a TV, accounting for 50% to 70% of the total cost. Choosing the right screen is crucial. Screen quality is typically categorized into three levels based on the number of dead pixels: - **A (Dead pixels < 5)**: A qualified standard for a TV. - **B (Dead pixels > 5 and < 10)**: Acceptable but not ideal. - **C (Dead pixels > 10)**: Not recommended for use. Most TVs should meet at least an **A-grade** standard. However, **A+** screens have even fewer or no dead pixels, offering a much better visual experience. In some countries, you may even find **A++** models with near-perfect screens. When shopping, always ask the seller about the screen grade—don’t hesitate to request detailed information if it's not clearly listed. **TV Interfaces: More and Newer is Better** The interface of a TV determines its functionality and connectivity options. The more ports and the newer the standards, the better. Look for HDMI 2.0 or 2.0a, which support 4K resolution, and USB 3.0 for faster data transfer. Older versions like HDMI 1.4 or USB 2.0 are less efficient and might limit your experience. Before buying, check what interfaces you actually need and ensure that the TV has them. Also, consider future-proofing your purchase by choosing models with updated ports and standards. **Response Time: Smaller is Better** Response time refers to how quickly a TV screen reacts to input signals. The lower the number, the better. For example: - **30ms**: Can display 33 frames per second, suitable for regular video playback. - **25ms**: Supports 40 frames per second, great for gaming and smooth videos. - **4ms or below**: Ideal for high-speed games and sports viewing. If you're into gaming or watching fast-paced content, response time is a critical factor. Always check this specification before making a decision. **Refresh Rate: At Least >60Hz** The refresh rate indicates how many times the screen updates per second. A higher refresh rate means smoother motion and better image quality. While 60Hz is common, 100Hz or 120Hz models offer even better performance, especially for gaming and sports. However, keep in mind that **response time** is more important than refresh rate when it comes to reducing motion blur and ghosting on LCD screens. **Energy Efficiency Rating: Level 1 is the Best** Energy efficiency ratings help you choose a TV that saves power and reduces electricity bills. There are five levels, with **Level 1** being the most energy-efficient and **Level 5** the least. Opting for a Level 1 or 2 TV may cost a bit more upfront, but it will save you money over time and be better for the environment. **Input Delay: Important for Gamers** Input delay refers to the time between pressing a button and seeing the result on screen. For casual users, this might not matter much, but for gamers, even a few milliseconds can make a big difference. High input delays can cause lag, making it harder to win in competitive games. If you're a gamer, look for TVs with low input delay. Some models even have a "game mode" to reduce this further. If not sure, you can ask for user reviews or test it yourself. In summary, when buying a TV in 2017, pay attention to screen quality, interface options, response time, refresh rate, energy efficiency, and input delay. These factors can significantly impact your overall experience. With this knowledge, you'll be better equipped to choose a TV that fits your needs and budget.

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