Videotex character set

This article is about the Videotex character sets defined by ITU T.101. For the Videotex (Viewdata and Teletext) character sets defined by ETS 300 706, see Teletext character set.
In addition to sets of graphical characters and control characters, some Videotex formats included Picture Description Instructions (PDI) sets used for in-band vector graphics.

The character sets used by Videotex are based, to greater or lesser extents, on ISO/IEC 2022. Three Data Syntax systems are defined by ITU T.101, corresponding to the Videotex systems of different countries.