We stayed on the air, they waited for the right time, and all of a sudden there was the flash. The people watched it, Gil described it, Lane talked about it, and that was our telecast. That one flash. You just see this blinding white light. It didn’t seem real. We didn’t have videotape. You couldn’t say, “Let’s look at it again.”
A year later, all the networks carried live coverage of nuclear tests. Link
Wired also has a collection of nuclear bomb videos. Link