Credit: Supernatural's Sam and Dean. (CW)

Coming up in Primetime Television. has plenty of Primetime scoops for our readers to look forward to during the week of April 16 and beyond. In our latest Primetime Dish Column you’ll find episode teasers, casting scoops, series returns, and a few late night appearances by former soap opera actors.

90210: A repeat of the March 13, 2012 “Blood Is Thicker Than Mud” episode will air at 8:00 PM. If you missed the rockband Train’s CW appearance, this is it!

Breakout Kings: Daytime fans, don’t miss Sunday’s April 15 episode featuring Jessica Tuck (“Days of our Lives,” “One Life To Live,” “True Blood”). Look for her character’s daughter, and her daughter’s criminal boyfriend, to be involved in a Romeo and Juliet type affair. The A&E series airs Sundays at 10:00 PM.

Castle: As reported earlier, Nathan Fillion (Beckett) and Adam Baldwin (Detective Ethan Slaughter) will once again team up on screen in Monday’s episode… Beckett and Detective Ethan Slaughter work together. One of them will get more than they bargained for after witnessing someone’s methods up close. Tune in to ABC at 10:00 PM. In other news, Judith Scott (“Dexter”) will turn up as Captain Montgomery’s wife Evelyn during the May 7 finale.

Desperate Housewives: Guess who’s coming back before the ABC series final episode? Dana Delany (“Body Of Proof”) as Katherine Mayfair! The actress was last seen on Wisteria Lane in 2010 and will turn up for the May 13 finale.

FOX’s ‘That 70s Show’ And ‘In Living Color’ Reunion: On Sunday April 22 actors from the network’s former shows “That 70s Show” and “In Living Color” will reunite to talk about past show memories during FOX’s 25th Anniversary special at 8:00 PM. Actors Mila Kunis, Ashton Kutcher, Laura Prepon, Wilmer Valderrama, Keenen Ivory Wayans, Marlon Wayans, Shawn Wayans and many more will be in attendance.

Game Of Thrones: Fans will be happy to know HBO just renewed the series for a third season! In the Sunday April 22 episode titled “Garden Of Bones” Joffrey punishes Sansa, Tyrion and Bronn try to temper the king’s cruelty, Catelyn implores Stannis and Renly to unite against the Lannisters, Arya and Gendry are taken to Harrenhal, and Davos must revert to his old ways. Tune in to HBO at 9:00 PM.

Girls: In the Sunday April 22 episode titled “Vagina Panic” Hannah reveals her AIDS phobia after realizing Adam might not be practicing monogamy, Marnie lives in denial of her boredom with long-term boyfriend, Charlie, and Shoshanna confesses a humiliating secret. Tune in to HBO at 10:30 PM.

Gossip Girl: Elizabeth Hurley guest stars as Diana. CW 8:00 PM Monday Episode Teasers: Blair and Dan host a glamorous British-themed Salon to celebrate their official coming out as a couple. ‘Gossip Girl’ may have other plans for Lola’s audition of a lifetime. Lily and Rufus disagree over Ivy’s situation. Serena and Diana face-off over secrets.

Grimm: Oscar nominee Mary Elizabeth Mastrantonio (“Law & Order: Criminal Intent,” “Without A Trace”) will appear in a guest starring role on the NBC series as the Woman in Black. Though her air date has not been released, the show will air its finale on May 18 and has been renewed for a second season by the network.

Happily Divorced: Though the TV Land sitcom’s finale doesn’t air until June 6, look for Rosie O’Donnell (“The Rosie Show”) as Katie O’Grady and Dan Aykroyd (“The Defenders”) as a possible love interest for Fran to appear in separate episodes sometime toward the end of May.

Hart Of Dixie: Former “Passions” actor Justin Hartley (ex-Fox) guests stars as Jesse in the episode titled “Bachelorettes & Bullets.” 9:00 PM CW Monday Episode Teasers: Zoe is attracted to and accepts Jesse’s invitation to lunch. Magnolia has some interesting plans for Lemon’s bachelorette party. Wade plans a hunting trip for George’s bachelor party.