Meh, he doesn’t have a science degree, he’s just a news guy that gives some attention to science . That’s a pretty mild mistake. The anchors should know he’s not equipped to answer on the fly.
For elements heavier that oxygen and lighter than iron, it requires nuclear fusion, which occurs inside stars, which formed significantly after the big bang. Those elements heavier than iron are formed by nucleosynthesis during a supernova explosion.
(at least that’s what I learned. I"m sure I have something messed up, and someone will be around to correct me soon. No anchor position for me!)
How long do we count until the end of the big bang? Is it the first millionth of a second of the univers? Or the first second? Or the first hundred thousand years?