The formula for calculating the optimal TV viewing distance is:

\[Viewing Distance (feet) = \frac{TV Size (inches) \times Factor}{12}\]Where:

- TV Size: The diagonal size of the TV screen (in inches)
- Factor: A multiplier based on the TV's resolution

- 720p (HD): Factor = 2.5
- 1080p (Full HD): Factor = 1.8
- 4K (Ultra HD): Factor = 1.5
- 8K: Factor = 1.0

- Determine the TV size in inches
- Identify the TV's resolution and corresponding factor
- Multiply the TV size by the factor
- Divide the result by 12 to convert to feet

Let's calculate the optimal viewing distance for a 55-inch 4K TV:

\[Viewing Distance = \frac{55 \times 1.5}{12} = 6.875 feet\]This visual shows the recommended viewing distance for a 55-inch 4K TV.

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