Season 38 finale; all the twists and turns, including drama that led two castaways to quit halfway through the season, culminate when the jury votes for one remaining contestant to become the million-dollar-winning Sole Survivor, after the final immunity challenge, the final three breakfast feast, and the final tribal council, 8 p.m., followed by the Survivor Reunion Special at 10 p.m. Wednesday on KIRO.

Also on Wednesday

“Riverdale,” 8 p.m. (KSTW): Season-three finale, series renewed; after receiving mysterious invitations, Archie, Betty, Veronica and Jughead band together to confront the evils of their past once and for all.

“Southern Charm,” 8 p.m. (BRAVO): Season-six reality-show premiere; Cameran struggles to balance motherhood and her career; the friends gather at Patricia’s dinner party and are shocked by a revelation.

“Toy Story 2,” 8 p.m. (KOMO): The 1999 Pixar classic; when a toy collector kidnaps Woody, Buzz Lightyear and the other toys band together to bring him home.

“Chicago Med,” 8 p.m. (KING): Caroline shares news that forces Dr. Charles to make a serious decision about their relationship; Dr. Rhodes experiences a huge loss; Dr. Choi and April face a challenge.

“Nova: First Horse Warriors,” 9 p.m. (KCTS): Anthropologist travels to sites in Kazakhstan, genetics labs in Denmark and anthropology museums in Russia to unlock mysteries surrounding the first riders of wild horses.

“Chicago Fire,” 9 p.m. (KING): A serial-arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

“Wahlburgers,” 9 p.m. (A&E): In the reality show’s 10th and final season, brothers Mark, Donnie and Paul Wahlberg expand their burger chain to a U.S. military base in Germany.

“Breakthrough: The Ideas That Changed the World,” 10 p.m. (KCTS): The history of the rocket, from its origin in ancient China to its use as a weapon of war; how adding hydrogen allowed rockets to carry astronauts to the moon.

Madeline McKenzie: mmckenzie@seattletimes.com. Program times may vary depending on your cable provider or service.