6 p.m. MTV SIESTA KEY

Juliette and Kelsey are both trying to launch new business ventures, while Brandon embarks on an unexpected yet committed journey into fatherhood as this summer reality series returns for Season 4. Meanwhile, compulsive gossip and meddler Chloe has embarked on a spiritual journey to become a better person, even if her friends are a little skeptical about how genuine this self-reinvention really is. Elsewhere, Amanda’s new career in filmmaking is jeopardized when a scandalous video surfaces.

7 p.m. MTV THE HILLS: NEW BEGINNINGS

The cast of this docuseries sequel returns for their second season after a year of lockdowns and lost time due to the coronavirus pandemic. These new episodes find the show’s characters at a crossroads, with several of them struggling to save or rebuild business ventures that were hard-hit by COVID-19 restrictions. Others, meanwhile, navigate through rocky relationships, substance addictions and other health issues. Among the returnees are Audrina Patridge, Ashley Wahler, Brandon Thomas Lee, Brody Jenner, Spencer and Heidi Pratt, and Whitney Port.

8 p.m. KRQE-13 SEAL TEAM

Jason (David Boreanaz) leads Bravo Company on a complex and high-stakes covert mission that tasks them with infiltrating a Boko Haram camp, hacking into its data network and using that intel to rescue an American hostage in a new episode called “Hollow at the Core.” Max Thieriot, Neal Brown Jr. and A.J. Buckley also star.