Foster, versus Foster's iPad-wielding friend
Imagine that Foster had a friend who had an iPhone slyly peeking out of his pocket, live streaming the show. Foster might not even be aware of what was going on.
Imagine that Foster had a security camera, that just happened to have the TV screen in view. Imagine that the camera was unsecured, and happened to be indexed on the 'net. One thing follows another, and then people restream the show. Foster might not even be aware of what was going on.
Imagine somebody sneaks up to his house and videos the show through a window. Etc.
The reality in this case is that Foster was presumably aware of his friend, but it's not a clear-cut example of Foster himself doing the streaming. Half-and-half I think.
It's a bit like the grandchildren downloading music while visiting grandma's house. But a bit less so.