Family Tree Sunday at 10:30 p.m., HBO
This is a sweet new series from Christopher Guest, the guy behind “Best in Show,” “A Mighty Wind,” and the superior “Waiting for Guffman.” It’s well worth checking out, if you liked any of those movies. The premise is basic: A lost soul, played with calm appeal by Chris O’Dowd (pictured) from “Bridesmaids” and “Girls,” goes on a journey to learn about his roots. But the characters he meets along the way are a little crazy, most of all his ventriloquist sister, who shares all her darkest and crudest thoughts through her hand puppet.
Nurse Jackie Sunday at 9 p.m., Showtime
So Jackie is going to connect with Frank the cop, played as a perfect mensch by Adam Ferrara from “Rescue Me,” and she will be happy in love forever, right? Yeah, this is “Nurse Jackie,” and that’s not how it rolls. Especially since Jackie (Edie Falco, pictured) seems to need to screw things up when they are going well. One major negative in what is turning out to be a decent season: The absence of Eve Best, as O’Hara. She was the life of the party.
Iyanla, Fix My Life 9 p.m., OWN
Please, make me less passive.
Rise of the Dinosaurs 9 p.m., Syfy
Fall of the eyelids.
Dangerous Intuition 8 p.m., Lifetime
I have one about the quality of this evil-stepmom movie.