BEST BETS

• Mac and the team are off to Ecuador to help save the life of one of that country’s presidential candidates in a new MacGyver. Dalton plays a huge role in the mission to ensure the politician gets a needed heart transplant. (Global, CBS 39 at 8) • David Oyelowo ( Selma) and Rosamund Pike ( GoneGirl) star in the 2016 biographical romance A UnitedKingdom, which chronicles the true story of the relationship between Seretse Khama, heir to the throne of Bechuanaland, and Ruth Williams, a white Englishwoman, who meet in London while he is in school. (M1 at 9; MFST at 11) • Now back in Los Angeles, Davina finds her stay at the Pfefferman home somewhat rudely interrupted in a new Transparent. Back in the Holy Land, the Pfeffermans float tranquilly in the Dead Sea, while Ali rushes to meet them, only to be waylaid at an Israeli checkpoint. (Showcase at 9) • During its relatively brief first season, Marvel’sInhumans has survived some brutal attacks from critics, and in the season finale, Black Bolt and Maximus face off in a particularly vicious case of sibling rivalry. (CTV, ABC 38 at 9:01) • On a chilling new episode of The Exorcist, the foster home becomes the setting of a potentially lethal encounter, as Marcus and Tomas do all they can to lure the demon out into the open. (CTV Two 10, Fox 14 at 9:01) • In a new special called FooFighters —LandmarksLiveinConcert, Great Performances presents Dave Grohl and his musical comrades — who are very used to performing in large spaces — performing at the Odeon of Herodes Atticus amphitheatre at the Acropolis in Athens, Greece. (PBS at 10)