HOW I MET YOUR MOTHER: A half-hour before their ceremony, both Barney, played by Neil Patrick Harris, and Robin, played by Colbie Smulders, have panic attacks about their upcoming nuptials. (Richard Cartwright/CBS)

Even though the lead-up to their wedding has lasted an agonizing 10-plus episodes, Barney and Robin both get panic attacks 30 minutes before their nuptials on “How I Met Your Mother” (CBS at 8). Meanwhile, Marshall and Lily take advantage of that time to rewrite their original wedding vows.

The first contestant is eliminated from “Dancing With the Stars” (ABC at 8), and the remaining contestants are asked to perform a dance style of the celebrities’ choosing.

The battle round continues on “The Voice” (NBC at 8).

A children’s TV icon is murdered, but once the “Bones” (Fox at 8) crew starts investigating the case, they begin to unearth his seedy and promiscuous past, which leads to a lengthy list of suspects.

Deke invites Max and Caroline to dinner with his parents on “2 Broke Girls” (CBS at 8:30), and it’s all very awkward until Deke’s mother confesses her past to Max.

Joe’s techniques prove themselves successful yet again when he attains more power over the Korban cult on “The Following” (Fox at 9), but Ryan and Max are onto him.

SERIES PREMIERE: The quiz show “None of the Above” (Nat Geo at 9) challenges viewers to predict the outcome of “man on the street” experiments.

SERIES PREMIERE: “The Numbers Game” (Nat Geo at 9:30) explores the way science and statistics can hold the keys to a longer, wealthier and more exciting life.

A run-of-the-mill Wall Street trader homicide is investigated on “Castle” (ABC at 10), but things get interesting when it’s revealed that the victim was doing undercover work for Gates’s estranged sister.

FINALE WATCH: After last week’s shocker, “Teen Wolf” (MTV at 10) plans to end Season 3 with one last stand made by Scott, Derek and their allies.

Tetazoo steps in for Lillian and heads the manhunt for Gabriel, who’s on the run trying to find out who’s framing him for murder, on “Intelligence” (CBS at 10).

Actor Arnold Schwarzenegger and television host Carson Daly come to “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with music from Vampire Weekend.

“Late Show With David Letterman” (CBS at 11:35) welcomes former president Jimmy Carter.

Actors Jennifer Connelly and Rohan Chand swing by “Jimmy Kimmel Live” (ABC at 11:35), along with a musical performance from Sharon Jones and the Dap-Kings.

Rachel Lubitz