I can't help but think these are confirmation bias events (if the clips were for "Battlestar Galactica" and not BB you wouldn't be writing about it), but similar things happened to me too:

- I walked by an e-bike store, stopped to look at the model displayed on the window, a few days later I got ads for e-bikes on Instagram (I can't remember now if it's for the particular store's brand).

- I opened Instagram at a carwash, a few days later, ads for car-detailing services - here I have a strong feeling it used my location data.