Same thing when I was watching some tv show on CraveTV where they character said that an assailant used "wifi circuit breakers". Auto complete/suggestion for "wifi" in my address bar was "wifi circuit breakers"
I know search suggestions are enhanced by recency of something you were browsing but not entirely sure how this is possible based on contents of a video that is being played.
Now, I don't think Chrome can actually listen to audio, process it in real time and all that, but in both cases Youtube and CraveTV had/has subtitles in the video player which are just text files.
This comes off a bit tin foil hatty so I made a different account but not really sure how the auto complete for "wifi" and "geo" could literally be what I was looking for which is rare (at least in the case of wifi circuit breakers..)
Otoh, I know there was come controversy because Samsung was taking screenshots from people's TVs and using them to target advertising, so it's not unprecedented