'Backpackers': Noah Reid as Ryan and Dillon Casey as Brandon weigh their options in the series premiere. ( The CW Network/ The CW Network)

After a surprisingly emotional hometown week, “The Bachelorette” (ABC at 8 p.m.) takes Andi to the Dominican Republic, where she spends alone time with each of the three remaining bachelors.

The remaining 14 contestants are split into two teams and work in an iconic diner in Los Angeles on “MasterChef” (Fox at 8).

“Antiques Roadshow” (MPT and WETA at 8) is in Baltimore to appraise items ranging from an Edgar Allan Poe-inscribed book and a Titanic memorabilia collection, to a Frederick de Wit atlas.

SERIES PREMIERE: Ryan and Brandon, who are best friends, consider what they want to do with their lives as they search Europe for Ryan’s fiancee in the first episode of “Backpackers” (CW at 8:30).

RETURNING SHOW: “Brain Games” (NatGeo at 9) returns for its summer season, and it opens with a look at how the brain handles compassion and games and experiments that test a brain’s capacity.

FINALE WATCH: It’s do or die for Jack Bauer on the finale of “24: Live Another Day” (Fox at 9), and it looks like the team is reuniting to prevent the impending international crisis.

SERIES PREMIERE: The half-hour comedy “Seed”(CW at 9:30) centers on Harry, an avid sperm donor in his youth who is now meeting some of the kids he helped create. In the premiere, he becomes a father figure to teenage Anastasia and 9-year-old Bill.

SERIES PREMIERE: “Going Deep With David Rees” (NatGeo at 10) teaches you how to do things you think you already know how to do — but better. For example, the show will demonstrate how to tie a perfectly symmetrical shoelace knot and the most ergonomically devastating way to wield a shovel.

Big Jim conducts a survey to see how long the town can survive on its dwindling resources post-butterfly invasion on “Under the Dome” (CBS at 10). And, acid rain’s a comin’.

Retired football star and current television host Michael Strahan comes to “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with actress Diane Kruger and music from Phish.

Actor Kurt Russell and comedian Hannibal Buress are on the “Late Show With David Letterman” (CBS at 11:35), with a musical performance from Sturgill Simpson.

A repeat “Jimmy Kimmel Live” (ABC at 11:35) plays host to actors Susan Sarandon and Ramon Rodriguez, with Yasiel Puig of the Los Angeles Dodgers and music from Robin Thicke.

— Rachel Lubitz