Her husband, David Alexander, mostly sticks to the "Masterpiece" series on PBS (though he quit "Downton Abbey" after one season because it was "too superficial").

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'Downton Abbey': Big season 4 spoiler!

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Downton Abbey is beginning production on season four.

BBC: iTunes to preview Downton Abbey episodes in US

Second-most watched: the season premier of Downton Abbey.

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" Prime Instant Video will continue to be the exclusive subscription home through Season 4 and, if produced, Season 5 of "Downton Abbey.

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Starring Hugh Bonneville, Dan Stevens and Michelle Dockery, Downton Abbey has been hugely popular for Apple - season two was the best-selling TV series on iTunes last year.

BBC: iTunes to preview Downton Abbey episodes in US

For example, throughout this third season of the PBS's "Downton Abbey, " my husband and I were constantly cranking up the volume or rewinding the recorded show to catch the dowager countess's zingers.

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But why should Americans, whose republic is founded upon the proposition that all men are created equal, be so fascinated by "Downton Abbey, " a soap opera (now in its second season on PBS) about the English landed aristocracy during the Edwardian era, in which all men are definitely not created equal?

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With every episode of every season of TV's hottest series, like Game of Thrones, Downton Abbey, Dexter, Girls, Spartacus and Duck Dynasty, plus full, current or most recent seasons of Mad Men, Revolution, The Walking Dead, Touch, Chicago Fire, Psych, Parenthood and The Americans, the first Xfinity Watchathon Week will offer a massive collection of content from the best networks never before available for free in one place.

ENGADGET: Comcast readies Xfinity Watchathon Week for March 25th, will give customers all-access to premium TV series