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Coming up in primetime television.

Soaps.com has a new CBS series for the week of April 21, as well as episode teasers, casting, a fan contest, a country singer guests on wife’s sitcom and more in our latest Primetime Dish column…

Arrow:
Things spin out of control in the CW’s April 23 8:00 PM episode titled “Seeing Red.” Wednesday episode teasers: Roy unleashes on the city after the mirakuru sends him into an uncontrollable rage. Oliver must figure out a way to stop the mirakuru, who’s taken over Roy completely. Sara suggests killing Roy, but Thea has a plan to break through to him and goes on camera at Moira’s campaign rally to lure him to Verdant.

Bad Teacher:
The new CBS series based off of the 2011 feature film premieres on Thursday April 24 at 9:30 PM. Former trophy wife Meredith Davis (Ari Graynor) sets out to regain a life of luxury by posing as a teacher at an upscale school. Though she plans to meet and marry one of the students’ rich, single fathers, her unconventional and unsuitable methods of teaching cause suspicion with a fellow faculty member.

Banshee:
TVLine is reporting that Geno Segers and Afton Williamson, who play Chayton Littlestone and Alison Medding, have been promoted to series regulars for the upcoming season three. The Cinemax series will return sometime in 2015.

Covert Affairs:
Nazneen Contractor (“Revenge”) has landed the recurring role of Sydney. Season five of the USA Network series returns in June. Tamara Becher (co-producer/executive story editor) took to Twitter to welcome Contractor:

Dallas:
Keep an eye on Soaps.com’s Dallas Spoilers for details on when the TNT series will return from its mid-season break.

Defiance:
Linda Hamilton (“Chuck,” “Terminator” films) will recur in the guest-starring role as Rafe McCawley’s (Graham Greene) wife Pilar McCawley during season two of the Syfy series. Tune in at 8:00 PM on Thursday June 19 for the series premiere.

Extant:
Tessa Ferrer (“Grey’s Anatomy”) will recur in the role of an astronaut named Katie Sparks when the CBS series premieres at 9:00 PM on Wednesday July 9.

Game Of Thrones:
In HBO’s Sunday April 20 11:00 PM episode titled “Breaker Of Chains,” Tyrion doesn’t know if his family will help him out of his current mess and receives a visit from someone loyal. Tywin offers his services to the common good. The personnel at Castle Black is assessed by Sam. Arya receives another life lesson from the Hound, and Daenerys comes to a decision.

Gang Related:
Fan votes! If you’re anticipating the new upcoming FOX series and would like to see an advanced screening before its Thursday May 22 premiere, Soaps.com has a contest for you. Eventful and the network will grant fans in five cities the chance to screen its new action drama starring Ramon Rodriguez (“Battle Los Angeles,” “The Wire”), RZA (“G.I. Joe: Retaliation,” “Californication”) and Terry O’Quinn (“Lost”). Cast your vote to Demand it!® Gang Related now through Monday April 21 at 5:00 PM Pacific.

Grey’s Anatomy:
Read our Grey’s Anatomy Spoilers to find out who gives the doctors upsetting news in ABC’s Thursday April 24 9:00 PM episode titled “Change Of Heart.” Soaps.com will post the recap after the show airs.

Hart Of Dixie:
It’s all about being stuck in the middle in the CW’s April 25 9:00 PM episode titled “Better Man.” Friday episode teasers: Zoe is put in an awkward position, smack-dab between Wade and Vivian. Things between Lavon and AnnaBeth worsen and begin to affect the town. Lemon devises a plan to get a less-than-perfect health inspection grade changed, and George agrees to go on a date with a Bible School teacher.

Orphan Black:
Season premiere! In BBC’s Saturday April 19 9:00 PM premiere titled, “Nature Under Constraint And Vexed,” Alison sinks into despair after attending Aynsley’s funeral. Sarah suspects that ruthless pro-clone Rachel is behind her daughter’s disappearance and goes on the hunt to find her.