why are tv.'ssize measureddiagonallysaying a 15ins then when you measure the screen horizontally you lose about 4ins the same when measured vertically who's kidding the public ? come on.

[maillme]

about tv's measuremants

[SteveD]

All TVs are described using the diagonal measuremant so why do you feel that the public is being kidded?

[gina32]

tv screen are measured from corner to corner

[kempie]

The problem with using diagonal measurement is that it does not differentiate between aspect ratios.

e.g.

a 30" standard TV screen (4:3) is around 18" tall

a 30" widescreen TV screen (16:9) is only 16�" tall

In other words, a widescreen TV needs to have a diagonal screen measurement around 9% larger than its nominal 4:3 equivalent to actually have a viewable area of the same height.

[meatismurder]

We bought a tv from argos,19inch screen,we measured it horizontally and thought that argos had made a mistake,Kicked right off with them we did, it wasnt till the next day when I told me mum,she put us straight. oops sorry.

[jno]

it would make a lot more sense if they gave both width and height; but the diagonal measurement dates from the days when all screens were in the same proportion. They aren't now but widescreens are always advertised as such, as far as I know (because it's a selling point), so I don't think anyone's really being robbed here. A 30 inch screen is bigger than a 20 inch one.