7 p.m. HBO THE CRIME OF THE CENTURY

The conclusion to filmmaker Alex Gibney’s two-part examination at shady dealings behind the opioid epidemic delves into the mass marketing of fentanyl, where once again there were strong connections between drug manufacturers and government policy. Even as the silent opioid epidemic was killing 40 Americans every day, Insys Therapeutics, the manufacturer of fentanyl, continued to bribe doctors to over-prescribe their drug. Eyebrow-raising videos from sales retreats, as well as promotional materials, point to a nearly complete disregard for widespread and nefarious corporate practices.

8:03 p.m. HIST AMERICA’S BOOK OF SECRETS

Host Lance Reddick returns for Season 4 of this docuseries, which purports to reveal the truth behind some of history’s most shocking headlines. The season premiere, “The Secret Space Program” dives into a 2002 story about a man named Gary McKinnon, who claimed he had uncovered evidence of a secret military space program, nearly 20 years before the Trump administration announced its Space Force program. The episode considers whether the United States may have a covert presence in space of which the public is unaware.

8:30 p.m. KOAT-7 MIXED-ISH

When Paul (Mark-Paul Gosselaar) seeks to become closer to sisterin-law Denise (Christina Anthony), he exploits his white privilege to help her out with her errands in the new episode “Walk This Way.” Meanwhile, Rainbow (Arica Himmel) and her siblings (Ethan Childress, Mykal-Michelle Harris) pick up some questionable sales tactics while hustling chocolate bars for a school fundraiser. Tika Sumpter also stars.