What To Watch: Supernatural's Deadly Book, Extra Goldbergs, Xtina And More

On TV this Wednesday: Arrow's bid to keep a low profile is struck down by a Deathbolt, Christina Aguilera is a ghost from Nashville's past, ABC serves up double the Goldbergs and the Winchesters aim to erase the Mark of Cain. Here are 10 programs to keep on your radar:

Showtimes for April 15, 2015

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NHL Playoffs: First Round

USA Network

The New York Islanders take on the Washington Capitals as the initial round of hockey playoffs begin.

ET

American Idol

Fox

The top seven take the stage and each perform two American classics. (See what they're performing!)

Arrow

The CW

Oliver teams with Ray when metahuman Jake Simmons aka Deathbolt (Doug Jones, Falling Skies) begins killing innocents with lethal energy and plasma.

ET

The Goldbergs

ABC

Two episodes: First, Beverly freaks when she learns Adam is failing Spanish. Then at 9:30, Erica educates her mother on the Reagan vs. Mondale election.

ET

Criminal Minds

CBS

The unit investigates the murder of a seemingly well-to-do family in Maryland; Hotch works to make peace with his Alzheimer’s-ridden father-in-law (Ed Asner).

Supernatural

The CW

Charlie alerts Dean and Sam that she's found the Book of the Dead, which may be what they need to remove the Mark of Cain.

ET

The Americans

FX

Martha deals with an unanticipated visitor, as Elizabeth and Philip confront an intimidating Mujahideen commander.

Broadchurch

BBC America

New evidence arises as Joe's case draws to a close.

CSI: Cyber

CBS

Agent Ryan and her cyber squad investigate when a woman's electronic thingamabobs indicate she was alive for days following her alleged demise.

Nashville

ABC

Jeff's ex-wife, pop star Jade St. John (Christina Aguilera), arrives in town; new mom Juliette struggles with her desire to return to work. (See photos.)

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