What's On TV Tonight? - 4/26/2013

Credit: ABC

8:00 PM ET

NICK'S PICK: Happy Endings ("The Ballad of Lon Sarofsky") - Penny's friends are shocked when she has an affair with the Car Czar (Rob Corddry); Max enters a pageant with Dave and Alex as his coaches. (ABC)

Undercover Boss ("Retro Fitness") - Retro Fitness CEO Eric Casaburi goes under cover and encounters an employee who hates customers. (CBS)

Fashion Star ("His and Hers") - The contestants must create a design and alter it for both men and women; the pressure wears Silvia down; Cassandra butts heads with her pattern maker. (NBC)

Kitchen Nightmares ("Prohibition Grille") - Ramsay travels to The Prohibition Grille in Everett, Wash., to help its inexperienced owner. (FOX)

Nikita ("Self-Destruct") - Shattered by recent events and Amanda's programming, Alex reverts to her former ways and strikes out with a vengeance; Michael and Nikita sort through the ashes of Division; Birkhoff struggles with personal loss. (The CW)

Sons of Guns: Locked and Loaded [SEASON PREMIERE] ("Under Siege") - A blacklisted visitor; an important order is mishandled; the largest weapon in Red Jacket history. (Discovery)

Playing With Fire - This series profiles some of the movers and shakers in New York's dining industry as they try to balance their busy work and personal lives while dealing with the competitiveness of the Manhattan food scene. (E!)

Four Weddings ("...and a Windstorm") - Natalie's majestic mountain marriage; Julie's black tie bash; Brittany's canyon chapel celebration; Stacey's city and country mash-up. (TLC)

8:30 PM ET

Happy Endings ("Un-sabotagable") - Max asks Jane to help him get his act together so he can prove that his life is not pathetic; Alex tries to use a stockpile of coupons. (ABC)

9:00 PM ET

Da Vinci's Demons ("The Prisoner") - Riario discusses his defeat with the pope and a mysterious prisoner; Leonardo searches for an explanation when the Medicis are blamed for an outbreak of demonic possession at a convent. (Starz)

Shark Tank - A fishing bobber made from a shotgun shell; homemade cupcakes in a jar; generating electricity through walking; a belt with no holes; a fitness-based dance program. (ABC)

Vegas ("Past Lives") - As Sheriff Lamb and Jack investigate a Savoy craps dealer's murder, a desperate suspect takes Mia hostage; Yvonne reconsiders her relationship with Dixon. (CBS)

Grimm ("Volcanalis") - Nick finds himself fighting a wildly different sort of nature freak in a desperate attempt to keep a volcano from burying Portland in lava. Meanwhile a pregnant Adalind meets a powerful new ally in Europe. (NBC)

Touch ("Accused") - Martin decides to take a chance and spills the beans to Detective Lange in hope of clearing his name; Jake leads Avram to a possible Righteous 36 member. (FOX)

Live From Lincoln Center ("Rodgers & Hammerstein's Carousel With the New York Philharmonic") - Rob Fisher conducts this staging of Rodgers and Hammerstein's ``Carousel.'' (PBS)

Say Yes to the Dress: Atlanta ("Tulle vs. Ta-Ta's") - Bride Summer falls in love with a dress nearly twice her budget; an NFL cheerleader and her mom differ in opinion; bride Meredith must choose comfortable yet cute shoes. (TLC)

Sons of Guns ("Hangfire") - Will and Joe head to Jordan for some high level meetings; Kris takes on a stubborn Solothurn without Will's permission. (Discovery)

10:00 PM ET

Blue Bloods ("Devil's Breath") - Danny is suspicious when he encounters a disoriented man covered in blood; Jamie helps an off-duty officer conceal his intoxication after apprehending an armed robber. (CBS)

Rock Center With Brian Williams - Celeste and Sydney Corcoran discuss their injuries from the Boston Marathon bombing; author Jackie Hance and her husband, Warren Hance, discuss the car accident that killed their three daughters; actors who star in commercials; the latest news. (NBC)

Anderson Cooper Special Report ("Boston Terror-Beyond the Bombings") - An investigation into the Boston Marathon bombings. (CNN)

Wild West Alaska ("The Kodiak Experience") - A young mother learns survival skills on dangerous, bear-infested Kodiak Island; the state ``mustache champion'' brings in a load of old guns. (Discovery)

Fashion Police - Guests Christina Milian, Penelope Mitchell and Freya Tingley. (E!)

Mystery Diners ("Cheese-Burglar") - The owners discover that money is missing from their register and attempt to find the culprit. (Food Network)

Real Time With Bill Maher - Live political roundtable discussion and comedy. Guests include Jimmy Kimmel. (HBO)

XIII ("Joust") - XIII and Amos grapple physically and mentally, as they attempt to discover the truth behind the bombing of Synequanon's headquarters. (REELZ)

I Found the Gown ("Short Skirts and High Hopes") - Bride Lexi is determined to have a revealing runway look for her wedding; Kristina is searching for the perfect lace; Aida must replace her gown that was destroyedby Hurricane Sandy. (TLC)

10:30 PM ET

I Found the Gown ("Wedding Gown Showdown") - Bride Bethany comes from Va. in search of the perfect gown; Shawna falls in love with a gown that makes her second guess her tight budget. (TLC)

11:00 PM ET

Zane's the Jump Off ("Illegal Motion") - Earnest discovers Rita's secret; Nandi seeks eligible men for her reality dating show; Lauren tries to help a high school football player unseal his adoption records. (Cinemax)

VICE ("Love & Rockets") - Chinese bachelors seek the help of a professional matchmaker to find love; youth in Greece and Spain respond to the current financial crisis. (HBO)

Al Madrigal: Why Is the Rabbit Crying? - Stand-up comic, ``Daily Show'' correspondent, and Los Angeles family man Al Madrigal tells true tales of Coach Frankie, the Cholo soccer dad; ``Liam Neeson''; the mushroom-addled cleaning lady; Jesus. (Comedy Central)

LATE NIGHT

The Tonight Show With Jay Leno is joined by Actor Robert Downey Jr.; actor Chadwick Boseman; Avril Lavigne performs. (11:35 PM, NBC)

Late Show With David Letterman welcomes Actor Jon Hamm; magician Ricky Jay; The So So Glos perform. (11:35 PM, CBS)

Late Night With Jimmy Fallon has Actress Amy Poehler; actor Michael Angarano; Iron & Wine perform. (12:35 AM, NBC)

The Late Late Show With Craig Ferguson features Actress Robin Wright. (12:35 AM, CBS)

Last Call With Carson Daly is joined by Actress Tracy Spiridakos; author Neil Shubin; ZZ Ward performs. (1:35 AM, NBC)