Amazon has managed to keep Downton Abbey away from its competitors Hulu and Netflix by signing the show exclusively for their Amazon Prime streaming service. Downton Abbey is the wildly popular show that can be seen on PBS in the United States. The agreement also maintains exclusivity for season 4 and 5, if the latter is produced.
"The series is consistently in our top most watched TV shows each week, making it the most popular TV series with Prime Instant Video customers, ever," Brad Beale, Amazon's director of digital video content acquisition, said in a press release.
Season 1 and 2 is available for streaming currently, and you can watch season 3, even though some episodes have aired in the US yet, if you buy Amazon's TV pass for $9.45.