Big Bang finale spoilers in Australian media

Australian media websites have detailed storylines of the final Big Bang Theory episodes which have screened in the US.
Meanwhile fans are either waiting in frustration for Nine to confirm a date or turning to piracy to find out for themselves.
Nine is around 6 weeks behind the US and still playing reruns alongside 1 new episode a week.
According to Variety the show drew a huge audience:
The hourlong airing of back to back episodes delivered a 12.2 household rating and 22 share, an impressive l