Two Iranian-Americans detained here on national security charges appeared Monday for the first time on state television, with one saying in a brief video clip that his foundation may have targeted ''the world of Islam.''

The TV images followed Iran's announcement this month that fresh evidence had pushed its judiciary to launch new investigations into the cases of Haleh Esfandiari [wife of George Mason University historian Shaul Bakhash] and Kian Tajbakhsh.

State TV said the video clips were a preview for a longer program titled ''Under the Name of Democracy'' that will air later this week. Relatives and employers of Esfandiari and Tajbakhsh denounced the videos, saying they were coerced and illegitimate.