Maybe someone had a netflix or international TV account and they somehow shared a stream of it playing live or something. Now I'm kind of wondering how one would deploy such a thing for 80K clients though.

There are no Netflix streams licensed for further broadcast. Sharing a stream with 80k people is just as illegal as torrenting it to 80k people. Copyright law doesn't differentiate between protocols.

That's even worse in terms of creating more questions. Did every employee pay for their part? Did the company pay for it? How does this even work?