How to use this quiz
Answer the 5 questions on viewing distance (from your eyes to the screen), room type, primary use, seating arrangement, and budget. The viewing distance question matters most: the rule of thumb is roughly 1-1.5 feet of distance per inch of screen size for 4K TVs. Measure the actual distance from where your eyes sit to where the TV will go — don't estimate, since a 1-foot error changes the recommendation by 5-10 inches. Be honest about side-angle seating; a wide seating arrangement effectively increases the needed size because viewers at the edges experience a longer viewing distance.
What your result means
The three size bands (32-50", 50-65", 65-85") correspond roughly to SMPTE's 30-degree field-of-view recommendation for mixed usage and THX's more immersive 40-degree standard for home theater. A 65-85" recommendation means your distance and room type genuinely benefit from a large screen — at modern 4K resolutions you won't see pixels even at 7 feet. A 50-65" recommendation is the most common sweet spot for living rooms; when choosing within the range, lean larger if you sit closer to 10 feet and smaller if closer to 7. A 32-50" recommendation means your space (bedroom, kitchen, office) doesn't benefit from a bigger screen — and a too-large TV at close range causes eye strain from continuous scanning.
When to trust it
This guide gives a size recommendation, not a complete buying decision. It can't account for actual room layout constraints (a 75-inch TV is roughly 66 inches wide and 38 inches tall — measure your wall or stand before buying), wall mount weight capacity, ambient light conditions (bright rooms need higher peak brightness, often OLED's weakness), viewing angle limits of specific panel technologies, or whether the TV's HDMI ports and refresh rate match your gaming console or AV receiver. Personal preference also legitimately overrides the math — some viewers find larger screens overwhelming in small rooms, others want immersive theater feel at 6 feet. For dedicated home theater builds with projection, multi-row seating, or acoustic treatment, a home theater designer will outperform any quiz.