RE: Online fonts and sizes -- a bit long

[KMcLauchlan -at- chrysalis-its -dot- com]

Walden had some good explanation regarding the 
difference between font construction for computer 
and the same for TV.

This reminded me of another question:

Why is it that *generated* text seems to *generate* 
so much disruption if TV reception is anything less 
than perfect?

I refer to text that is inserted at (usually) the 
bottom of your TV screen, for such things as 
captions in newscasts, and "Dial this number now..."

If reception is perfect, there's no problem. If 
reception is a little shaky, then as soon as 
some generated text appears, the rest of the picture 
gets instantly crappier and there's audible static 
as well.

I've noticed this with several TVs over the years, 
on antenna or on cable (never had satellite).

It doesn't happen with closed-captioning (which 
has it's own black surround), nor does it happen 
with text such as movie sub-titles, which are 
part of the original movie. It happens when the 
station or the network cranks up the old character 
generator for overlay.

Is this some fault of TV-studio character generators 
(as a class, or within a commonly used brand/model) 
that improperly apply the text overlay signal to 
the underlying video from cameras and mixers? 

Thanks,

Curious George... er, I mean.... /kevin 

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