This is why I said "individually targeted". The TV advertiser doesn't know your name, age, gender, search history, etc.

Right. But they do know what program you are watching (which might be a demographic clue) and they do know a rough geographic area.

If facebook couldn't show chinese products to chinese visitors, they'd have a hard time selling ads. They'd be worse off than a tv station in that case.

Disregarding the fact that Facebook is blocked by the Great Firewall, and virtually unused in China, serving internet ads on a national or township basis is easy to do with IP address based selection. This can be done without tracking users (recording information about them) or otherwise impacting their privacy. It isn't necessary to build a database tying individual identities to nationalities or addresses, to geographically target ads.

That's different. They're selling ads on a channel. Targeted advertising is selling ads for a person.