This is the dawning of the age of Jon Cryer as Lex Luthor

Here’s what’s happening in the world of television for Sunday, March 17. All times are Eastern.
Top pick
Supergirl (The CW, 8 p.m.): Lena Luthor (Katie McGrath) has been a standout on Supergirl since her first appearance in 2016. While there have been some stumbles here and there—we remain unconvinced on the whole Lena and James thing—that character, and McGrath’s portrayal of her, has been a consistent bright spot, even when the show has faltered. That’s especially true when Brenda Young (Desperate Housewives) shows up as the Luthor matriarch; all that Luthor drama gives McGrath, her solid American accent, and that impeccable ponytail plenty to play.