MASTERPIECE CLASSIC: "DOWNTON ABBEY"
PBS, 9:00 p.m. ET
In Episode 4 of Season 3, Sybil (Jessica Brown Findlay), who’s usually overlooked in the primary plots, comes front and center, whether she’s absent or present. When she’s not around, her family is worried about her. And when she is – her family is worried about her. Check local listings.