3. The system as recited in claim 1, wherein said operating environment is configured to add said glyph received from said broadcast center to a list of downloaded glyphs.
3. The system as recited in claim 1, wherein said operating environment is configured to add said glyph received from said broadcast center to a list of downloaded glyphs. 4. The system as recited in claim 3, wherein said rendering engine is configured to determine if particular glyphs are present in said one or more glyph sets.