MAGICAL LAND OF OZ 10 p.m. on PBS (check local listings). You’ll find no yellow brick road or wicked witch in this new PBS program. What you will see are colorful parrots, mountain peaks blanketed by snow, kangaroos and a shockingly muddy crocodile. Yes, this is a nature program focused on the animals of Australia (the other Oz). The biological richness of that continent comes through in the diversity of the species filmed here. Another element that comes through: How merciless even nature’s smaller beasts can be, an angle in this first episode when the narrator observes a fly perched on the back of a crocodile. “The fly then sucks up the blood with its fleshy mouth parts,” he says, “filling to bursting point on its victim’s rich, cold blood.”

ROUGH NIGHT (2017) 7:30 p.m. and 9:25 p.m. on FXM. Scarlett Johansson stars as a soon-to-be-married politician named Jess in this comedy, which is more “The Hangover” than “Frost/Nixon.” During a race for State Senate, Jess gathers a group of friends for a bachelorette weekend that goes awry. “It’s all blithely formulaic and would be more irritating if the performers — who include Zoë Kravitz and Ilana Glazer — weren’t generally so appealing,” Manohla Dargis wrote in her review for The Times.