Irreconcilable Differences

Irreconcilable Differences is a CBS television series that began airing on September 23, 2013. The series began airing its most recent season, its sixth, on September 24, 2018.
== Premise ==
The series follows the Harper family: matriarch Melissa Harper, working father Duncan Harper, troubled teenage daughter Lily Harper, maturing son Jake Harper, and youngest Cal Harper. Duncan's brother, Brian Harper, struggles to find love, while Melissa's sister, Emma Buck, and her husband, Patrick Buck, deal with Patrick's father, Robert Buck, remarrying to Duncan and Brian's mother, Carla.
The second season deals with Lily struggling with depression, while Melissa worries when Lily's boyfriend, Daniel, comes closer into her life. More struggles arise when Duncan reveals he is leaving for a business trip to Jamaica for several months. Brian meets Annie Carlyle at one of his AA meetings and begins a relationship with her.
The third season shows Melissa and Duncan's separation following Lily's suicide. Jake struggles to reveal his homosexuality, while Cal becomes friends with the wrong kids. Emma and Patrick welcome a baby boy into the world, though a shocking revelation leads to divorce.
The fourth season follows Melissa and Duncan as they finalize their divorce. Jake begins his final year in high school, confident with himself, while Cal begins his final year in middle school. Emma gets a job at a law firm, while Duncan falls into alcoholism.
The fifth season deals with Jake beginning college and reuniting with Daniel, while Cal begins high school. Brian and Annie announce their engagement following Annie's pregnancy, while Emma debates a life-changing opportunity.
The sixth season follows Duncan struggling with cancer, and Melissa confiding in Annie with her problems. Brian begins to take care of Carla, as she slowly loses her sanity, while Cal meets the new girl. Midway through the season, Duncan passes away from cancer, leading to the entire family being shaken.
== Cast ==
*Abigail Spencer as Melissa Harper
*Corey Stoll as Duncan Harper (seasons 1-61)
*Dove Cameron as Lily Harper (seasons 1-2; guest season 3)
*Quinn Lord as Jake Harper
*Levi Miller as Cal Harper
*Tom Ellis as Brian Harper (seasons 1-6)
*Rashida Jones as Emma Buck (seasons 1-5)
*Chris Tucker as Patrick Buck (seasons 1-3)
*Annette O'Toole as Carla Harper-Buck (seasons 1-6)
*Gary Cole as Chester Harper (season 1)
*Ernie Hudson as Robert Buck (seasons 1-4)
*Jessica Lucas as Annie Carlyle (seasons 2-present)
*K.J. Apa as Daniel Logan (seasons 2, 5-6)
For a proposed seventh season, Gary Cole would return as Chester Harper in a series regular role.
1Stoll left the series ten episodes into the sixth season
== Series overview ==
Season	Episodes	Timselot 	First aired 	First aired 	Last aired 	Last aired 	Avg. viewers (millions)
Season	Episodes	Timselot 	Date 	Viewers (millions)	Date 	Viewers (millions)	Avg. viewers (millions)
1 	22 	Monday 10:00 pm	September 23, 2013	13.77 	March 31, 2014	10.10 	13.88
2 	22 	Monday 9:00 pm 	September 22, 2014	8.59 	April 20, 2015	7.00 	11.38
3 	24 	Monday 9:00 pm 	September 21, 2015	8.11 	April 25, 2016	7.03 	10.85
4 	25 	Monday 10:00 pm	October 3, 2016 	7.92 	May 15, 2017 	8.07 	10.93
5 	22 	Monday 10:00 pm	September 25, 2017	7.13 	April 16, 2018	5.19 	10.01
6 	22 	Monday 10:00 pm	September 24, 2018	6.83