From the August 4 edition of CBS’ CBS Evening News with Scott Pelley:
MAJOR GARRETT: But Trump also veered into territory where the facts don't follow repeating the farfetched tale of watching a secret video of the currency exchange in Iran at the time the U.S. Hostages were released in January.
[…]
GARRETT: There's no evidence of such a video, and the one his campaign says he was talking about shows the hostages in Switzerland, not the transfer of funds in Iran.