Endings, beginnings and celebrations fill TV this week.

On Monday, "Castle" celebrates 100 episodes with a "Rear Window"-esque situation. Then on Tuesday, "Justified" ends its fourth season. Don't fret, it'll be back for Season 5 on FX.

"Parks and Recreation" returns with a new episode on Thursday along with guest stars Annabeth Gish and J.K. Simmons. Later that night, NBC's "Hannibal" premieres.

"Smash" airs twice this week, on Tuesday at 10 p.m. ET and then in its new timeslot, Saturday at 9 p.m. ET.

Click through the slideshow for more TV picks.

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  • "The Following"

    From Fox: "After losing Claire to Joe's followers, Ryan and Parker attempt to recover while the FBI tracks down an undercover location that may have dark ties to Joe's following. Meanwhile, Claire adjusts to life at the follower's mansion and has an unexpected reunion, while Emma and Jacob continue to deal with Emma's betrayal in the all-new 'Whips and Regret' episode of 'The Following.'" "The Following" airs Mondays, 9 p.m. ET on Fox

  • "Castle"

    From ABC: "In the show's 100th episode, Castle finds himself in the unfortunate position of NOT being able to work a case. While he's holed up in the loft with a broken leg, Beckett goes off to investigate the death of an IRS agent without him, leaving Castle miserable and bored. But when he thinks he witnesses the murder of a young woman in the apartment across the street, he is thrown into a 'Rear Window'-esque murder mystery that hits much too close to home, on 'Castle.'" "Castle" airs Mondays, 10 p.m. ET on ABC

  • "Smash"

    From NBC: "After Leigh Conroy (guest star Bernadette Peters) joins the cast of 'Bombshell,' Tom (Christian Borle) finds himself struggling to diffuse the years of tension between her and Ivy (Megan Hilty). Jimmy (Jeremy Jordan) and Karen's (Katharine McPhee) connection is threatened by both Ana's (Krysta Rodriguez) newfound success and an unexpected visitor. Derek (Jack Davenport) learns more about Jimmy's past just as the public sees their first piece of 'Hit List.'" "Smash"airs Tuesdays, 10 p.m. ET on NBC and moves to Saturdays at 9 p.m. ET starting April 6.

  • "Justified"

    From FX: "Raylan has a last, lethal showdown with the Detroit mob, while Boyd and Ava try to keep an incriminating secret dead and buried. Written by Fred Golan & Benjamin Cavell; directed by Bill Johnson." "Justified" airs Tuesdays, 10 p.m. ET on FX.

  • "Arrow"

    From The CW: "When a young woman meets a violent death after partying at Verdant, Detective Lance (Paul Blackthorne) and his new partner, Detective Hilton (guest star Roger Cross) inform Oliver (Stephen Amell) and Tommy (Colin Donnell) that she was on the drug Vertigo. Oliver immediately pays a visit to the mental institution where The Count (guest star Gabel) is locked up, but finds he is in no condition to deal drugs. However, when The Count escapes and Starling City is flooded with even more Vertigo-related violence, Oliver and Diggle (David Ramsey) make it their mission to track him down. After Detective Lance uncovers incriminating evidence against him, Tommy goes to great lengths to clear his name, and the fallout from his actions leads Tommy down a new, unexpected path. In a flashback to the island, Oliver recalls the lessons he learned from Slade (guest star Manu Bennett) and Shado (guest star Celina Jade). Katie Cassidy and Emily Bett Rickards also star. Michael Offer directed the episode written by Bryan Q. Miller & Lindsey Allen." "Arrow" airs Wednesdays, 8 p.m. ET on The CW

  • "Scandal"

    From ABC: "When details from an old case don't add up, Olivia's team must backtrack to figure out if they made a mistake. Worse still, this mistake has potentially put them all in serious danger. Meanwhile, Olivia and Jake's relationship starts to heat up, while at the White House Fitz and Mellie's relationship hits a new low, on ABC's 'Scandal.'" "Scandal" airs Thursdays, 10 p.m. ET on ABC.

  • "Hannibal"

    From NBC: "When the FBI takes on a case of disappearing college girls, Jack Crawford (Laurence Fishburne) recruits Will Graham (Hugh Dancy), a gifted criminal profiler with a unique view into the psyche of serial killers, to consult. Jack also seeks the help of Dr. Hannibal Lecter (Mads Mikkelsen), a brilliant psychiatrist, who, unbeknownst to him, is not only one of the most successful serial killers of all time, but also a cannibal. After a copycat strikes, Will and Hannibal join forces to track down the culprit." "Hannibal" airs Thursdays, 10 p.m. ET on NBC.

  • "Elementary"

    From CBS: "Sherlock and Joan try to prevent a robbery from one of the largest cash vaults in the country during the middle of a Nor'easter. Meanwhile, Sherlock tries to help a transgender woman who is recovering from her latest break-up, on 'Elementary.'" "Elementary" airs Thursdays, 10 p.m. ET on CBS.

  • "Parks & Recreation"

    From NBC: "Leslie (Amy Poehler) and Ben (Adam Scott) travel back to his hometown of Partridge, MN to accept the key to the city. Ron (Nick Offerman) gets served a lawsuit from councilman Jamm (guest star Jon Glaser), while Ann (Rashida Jones) and Chris (Rob Lowe) take a compatible parenting quiz." "Parks & Recreation" airs Thursdays, 8:30 p.m. ET on NBC.

  • "Grimm"

    From NBC: "While on jury duty, Rosalee (Bree Turner) tasks Nick (David Giuntoli), Hank (Russell Hornsby) and Monroe (Silas Weir Mitchell) to help stop a defense attorney from using his particular "Wesen wiles" to overturn what should be an open-and-shut murder case. Back at the precinct, Captain Renard (Sasha Roiz) brings Nick and Hank in on his own recent dealings with the Verrat, to keep them on their toes. Meanwhile, a return to the trailer brings a flurry of memories of Nick rushing back to Juliette (Bitsie Tulloch)." "Grimm" airs Fridays, 9 p.m. ET on NBC.