'NASHVILLE': To draw attention to her Highway 65 debut, Rayna (R) plans a free concert where she'll perform with Luke Wheeler and duet with Juliette (L). (Mark Levine/ABC)

With the finale just one week away, “American Idol” (Fox at 8 p.m.) celebrates its 100th episode with the final three vocalists taking the stage and judge Randy Jackson selecting one song for each finalist to perform.

The remaining castaways on “Survivor” (CBS at 8) are pushed to new heights to fight it out for the final four slots.

FINALE WATCH: The recently-renewed “Arrow” (CW at 8) closes its sophomore season with Oliver deciding how far he can really go to stop Slade from killing someone else close to him.

The recently canceled “Revolution” (NBC at 8) has Monroe and Neville coming to a tenuous alliance in its penultimate episode.

FINALE WATCH: “Suburgatory” (ABC at 8:30) ends its third and final season with Tessa in a knitting circle and George surprised by the friends she makes there.

Mitch and Cam’s wedding festivities have officially begun, and of course the day begins with a series of crises on “Modern Family” (ABC at 9), including Phil receiving an eye procedure and Claire embracing a new role.

FINALE WATCH: A deep web of corruption is revealed in a Texas investigation on the “Criminal Minds” (CBS at 9) Season 9 closer.

FINALE WATCH: “Nashville” (ABC at 10) wraps up its second season with nearly every cast member performing, including Rayna at a free concert with Juliette and Zoey, Avery and Gunnar at a benefit.

“Nazi Mega Weapons” (MPT and WETA at 10) recounts Hitler’s last days in an extraordinary defensive position complete with kill zones and 13-foot-thick walls.

SERIES PREMIERE: “Kodiak” (Discovery at 10) reveals what it’s really like to live in one of the most remote places on Earth: Kodiak Island, Alaska, where a whale carcass drawing a number of bears really is your biggest excitement of the day.

Actress and comedian Maya Rudolph and actor Robert Duvall are on “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), along with a musical performance from Lily Allen.

Broadcast journalist Barbara Walters and actress Elle Fanning are on the “Late Show With David Letterman” (CBS at 11:35), with music from Randy Houser.

Actress Emily Blunt and television personality Daymond John stop by “Jimmy Kimmel Live” (ABC at 11:35), with musical guest Birds of Satan.

Rachel Lubitz