Haleh Esfandiari and Kian Tajbakhsh were shown in an advertisement for a program that state televison said would be broadcast in full on July 18.
In one clip, Esfandiari refers to Georgia's Rose Revolution, but it's unclear in what context she makes the remark.
Washington has dismissed Iranian claims against Esfandiari and Tajbakhsh, as well as two other Iranian-Americans facing similar charges.
Esfandiari, the head of the Middle East program at the Woodrow Wilson International Center for Scholars, was arrested in May after returning to Iran late last year to visit her elderly mother.
A U.S.-Iranian peace activist, Ali Shakeri, has also been detained on security-related charges, while Radio Farda reporter Parnaz Azima is free on bail but prevented from leaving Iran.
Copyright (c) 2006. RFE/RL, Inc. Reprinted with the permission of Radio Free Europe/Radio Liberty, 1201 Connecticut Ave., N.W. Washington DC 20036. www.rferl.org
