A typeface created to help partially sighted TV viewers read subtitles has
been chosen as the standard for digital TV in Britain. Viewers will see it when
they call up programme guides. Called Tiresias, the font was developed by a team
lead by John Gill of the Royal National Institute for the Blind. The characters
have open shapes, and, for instance, the lower-case letter l has a tail to
distinguish it from the numeral 1.
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