PARKS AND RECREATION: While the flu rampages through Pawnee, Tom (left) looks for a new sommelier for his restaurant venture. (Colleen Hayes/NBC)

Would you really go to a school fully sponsored by (and named after) a sub sandwich chain? On “Community” (NBC at 8 p.m.), Subway is trying to turn Greendale Community College into Subway University, which makes Jeff consider an employment offer.

Sheldon has a personal crisis after deciding string theory is a waste of time on “The Big Bang Theory” (CBS at 8).

“Shark Tank” (ABC at 8) hears pitches from trousers and leggings that provide a significant butt lift, a line a bold-flavored snacks and whimsical plush slippers.

A Pawnee flu outbreak hinders Andy and Leslie’s quest to find the best performers possible for the concert on “Parks and Recreation” (NBC at 8:30).

Cristina’s reaction to her huge Harper Avery award nomination makes the team question her real feelings on “Grey’s Anatomy” (ABC at 9), while Callie and Derek ironically work on a machine that detects emotions.

It’s the end of the road for one more contestant on the “American Idol” (Fox at 9) live results show.

FINALE WATCH: “Project Runway: Under the Gunn” (Lifetime at 9) has the designers designing and showing full fashion collections in just three days on the Season 1 finale.

Fitz considers ignoring Olivia’s advice when his campaign begins to plummet on “Scandal” (ABC at 10), while Olivia’s team deals with a serious breach in their security system.

“Elementary” (CBS at 10) has Watson and Sherlock investigating toxins after hidden anthrax takes down a pickpocket.

SERIES PREMIERE: “FNA USA” (CMT at 10) combines funny, outrageous and sometimes frightening viral videos with user-generated clips to show why America is No. 1 among seven continents.

The docu-series “Chicagoland” (CNN at 10) shows Chicago-area high school principal Liz Dozier fearful of a brewing gang war while mayor Rahm Emanuel launches a number of risky public works projects.

Actors Kevin Costner and Danica McKellar come to “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with a performance from Alan Cumming and the Broadway cast of “Cabaret.”

Actor Zach Braff and Former Sgt. Brendan Marrocco and his doctor Andrew Lee are on “Late Show With David Letterman” (CBS at 11:35), along with that very viral performace from Baltimore’s Future Islands.

Actors Seth MacFarlane and Paul Bettany swing by “Jimmy Kimmel Live” (ABC at 11:35), with music from Sam Smith.

Rachel Lubitz