"Salem" (7 p.m., WGN):
Witches are the new vampires (or zombies). They're the stars of this supernatural drama series set in 17th-century Massachusetts, where spooky, strange things are happening.
"Signed, Sealed, Delivered" (8 p.m., Hallmark):
This new drama from Martha Williamson ("Touched by an Angel") is about postal workers who specialize in getting undeliverable mail to its rightful recipients. In the process, they change lives.
"Game of Thrones" (9 p.m., HBO):
We're still gasping over last week's deadly episode. Of course, someone will have to pay for this poisonous crime and, unfortunately, right now it looks like our pal Tyrion (Peter Dinklage) has a big target on his back.
"Devious Maids" (10 p.m., Lifetime):
Bring on the heavy-duty detergent. There's lots of dirty laundry to deal with as this campy soap returns for a second season that promises even more twists and surprises. Eva Longoria, an executive producer on the show, directed the opener.
Also on Sunday:
"The Amazing Race: All-Stars" (8 p.m., CBS)