"Downton Abbey" (9 p.m., PBS): The wildly popular British drama returns for its fourth season, but don't expect a big celebration. Six months have passed since the sudden death of Matthew Crawley, but Lady Mary (Michelle Dockery) is still reeling from the car accident that turned her into a single mother.
"The Good Wife" (9 p.m., CBS): Broadcast TV's best drama continues with a case that has Alicia (Julianna Margulies) representing a band that has brought suit against a TV show for copyright infringement. Jason O'Mara guests stars.
Also on Sunday: