[fat_pikachu]

> At which side of the setup? To get the data from the neighborhood hub to my computer? To get the data from the start of the ISP's network to the neighborhood? To get the data from you to my ISP's network?

> And are you meaning actually from Netflix or from a CDN or from a Netflix node in an ISP's location or what?

Netflix has a proxy node on your ISP's network, or at least somewhere closer to it than where my computer sits. The video makes a smaller trip to your computer.

That's one optimization, among others, utilized by CPs.