Downton Abbey is back, and I review the sensational third season—and the highly controversial finale—of the British period drama, which returns to PBS’s Masterpiece on Sunday. WARNING: Minor spoilers ahead! Over at The Daily Beast, you can read my latest feature, " Downton Abbey Season 3 Review: A Return to Form," in which I review the third season of PBS's Downton Abbey ahead of its premiere on Sunday evening. Downton Abbey is back. For some, that’s incentive enough to tune in to the award-winning British period drama, which returns to PBS’s Masterpiece Classic on Sunday, Jan. 6, for another season of soapy intrigue with the Crawley clan and their servants. Other viewers, who like me were disappointed with last season, will take more convincing. They should take heart: Season 3 of Downton is a return to form for the show, recapturing the dazzling wit and sweeping romance of the now-classic first season. I was intensely critical of Season 2 of Downton when i