I would start with their Thai Cave rescue video. I scratch my head how this guy is not on tv.
According to last years research, over 50% of people are still watching linear TV via broadcast or cable:
https://arstechnica.com/gadgets/2022/08/for-the-first-time-e...
Live sports are the only exception, but I would say that is down big time also (as Nielsen indicates). Or rather, a series of gambling ads interspersed with a sporting event.
Overall, I don’t think Nielsen is able to properly assess which screen has people’s focus.
Fortunately we have youtube.