Photos courtesy of the BBC
Haleh Esfandiari and Kian Tajbakhsh are being held on suspicion of spying and endangering Iranian national security.
The academics could face the death penalty if charged and found guilty.
Correspondents say the documentary, In the Name of Democracy, was an apparent attempt to implicate them in a plot to destabilise the government in Tehran.
The programme also included an interview with Ramin Jahanbaglou, an Iranian-Canadian who has been told he cannot leave the country. Detained US-Iranians interviewed (more)
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Detained US-Iranians on TV
Mark Alexander