Big-screen TV: real need or just showing off?

A 40-inch TV at 2.5 metres, or do the experts say 55? Facts, science and showing off in the choice of screen size.

English · Original discussion in Spanish · Published

Big-screen TV: real need or just showing off?

A 40-inch television viewed from 2.5 metres away: according to visual ergonomics guidelines, you should move up to 55. But the author has been watching the same screen for years without straining their eyes and wonders whether all those inches are more about showing off than anything else. The debate is not new, but it resurfaces every time the industry pushes resolutions and sizes that, in many living rooms, simply do not fit.

The war of the inches: science or marketing?

Technical recommendations talk about a 40-degree viewing angle. For a viewing distance of 2.5 metres, that translates into screens of 55 inches or more. But real-world experience wins out: anyone comfortable with a 40-inch set does not need to change. In fact, some argue that full HD is enough because at a certain distance pixels are no longer distinguishable, and that the jump to 4K is only noticeable if you sit closer. The calculator at rtings.com lets everyone adjust to their own tolerance.

From CRT to plasma: nostalgia for the right size

Years ago, bars hung 21-inch CRT televisions several metres up and nobody complained. Today, a 32-inch TV viewed from one metre holds up perfectly well. The commercial pressure to sell ever-larger screens clashes with reality: often the cabinet or the wall simply cannot take any more, and a disproportionate screen can spoil a room. Some say the only sensible recommendation is to stop watching television altogether, but as long as you do watch, do it with judgement.

The dilemma is served: upgrade for eye health or for fashion? Those who favour practicality point out that if your current TV causes no discomfort, the sensible thing is to wait until it breaks. Others have already swapped a 42-inch for a 55-inch and feel the old one now seems small. In the end, the decision is as personal as the distance to the sofa.

Also available in: Deutsch

Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (37 replies).

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