More 1980s-era Cold War shenanigans take place in “The Americans” (FX at 10 p.m.). (Craig Blankenhorn/FX )

“Prince Harry’s South Pole Heroes” (NBC at 8 p.m.) offers a rare glimpse of Prince Harry on his second expedition with the Walking With the Wounded charity, as he leads a squad of celebrities and 12 wounded British soldiers on an arduous trek to one of the harshest places on earth — the South Pole. Matt Lauer hosts this exclusive and probably tear-jerking special.

“American Idol” (Fox at 8) has the Top 9 performing with the vague theme “I’m With the Band,” where each contestant gets to pick a favorite song and play lead singer to Rickey Minor and the band.

“Survivor: Cagayan” (CBS at 8) turns nasty when one team is rewarded with the opportunity to raid the other team’s camp for supplies and toiletries.

Jay arranges a Las Vegas trip for the adults of “Modern Family” (ABC at 9) and, as per usual, hilarity ensues with Phil auditioning for a secret society of magicians and Gloria worried about Jay finding a lady friend for their dog, Barkley.

S ERIES FINALE: After its network pulled the plug earlier this year, “Psych” (USA at 9) will end once and for all (and hopefully on a high note) after achieving TV milestones such as a 100th episode, a two-hour musical, a 10-city college tour, five standing-room-only appearances at Comic-Con and countless tributes to the 1980s.

Following the finale, “Psych After Pshow” (USA at 10) will be a live hour-long tribute to the series, hosted by Kevin Pereira.

In light of recent events, Elizabeth and Philip receive a new handler and Stan searches for a missing scientist on “The Americans” (FX at 10).

Juliette gets a big moment in the spotlight on “Nashville” (ABC at 10), but she’s still bothered by Avery’s ongoing relationship with Scarlett.

RETURNING SHOW: “Hot in Cleveland” (TV Land at 10) opens its fifth season with a live premiere.

Abbi indulges in an extravagant meal with friends for her birthday on “Broad City” (Comedy Central at 10:30) but after the dinner, Ilana experiences some self-inflicted side effects from indulging maybe a little too much.

Comedian Bill Cosby and BASE jumper Joby Ogwyn are on “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), and Nathan West sits in with the Roots.

Actor Peter Dinklage and stand-up comic Hari Kondabolu come to the “Late Show With David Letterman” (CBS at 11:35), with music from Sage the Gemini.

Actors Julia Louis-Dreyfus and Michael Peña swing by “Jimmy Kimmel Live” (ABC at 11:35).

— Rachel Lubitz