Adding searchable IPTC information to video in Bridge

Hello, I had read an old post that indicated it was possible to use Bridge to add IPTC information to a video file so that it was searchable along with all my images, based on traditional caption, keywords, etc. I just added some to a .mov file and clicked the "apply" icon but the information doesn't appear to surface in a Mac finder or Sporlight search or in other imaging programs like Photo Mechanic. Any way to accomplish this?

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