Lonelygirl15

That's a bit too far fetched for the episodes that have been released. I can't spot a unifying advertising theme (subject), nor have others pointed one out, and with so many viewers, you can believe they watch really closely.

There are random paintings or pictures, but they've been there from the ...

for Jennifer Lopez

Positive they're getting paid.

When a series attracts publicity, investment comes much more easily. As you know, one of the screenwriters is a lawyer. All three have a living, and this is just a part time gig for the actors.