They somehow formed one big, odd family and the series took on a variety of issues in the midst of its soapy twists and turns.
In tonight's 103rd and final episode which runs 90 minutes Kathryn discovers a long-buried family secret; Daphne and Mingo compete for an internship; Bay struggles to prove herself as an artist; and Regina takes a chance on love.
Elsewhere on TV …
• "The Middle" (7 p.m., ABC/Ch. 4): Frankie and Mike send Brick to Jesus Jam weekend camp to brush up for his confirmation.
• "Brooklyn Nine-Nine" (7 p.m., Fox/Ch. 13): The precinct could be shut down when because there's just not enough crime in the neighborhood.
• "If Loving You is Wrong" (7 p.m., OWN): The police search for the missing Andrew.
• "American Housewife" (7:30 p.m., ABC/Ch. 4): Doris invitest Katie to a charity polo match and Katie invites her best friend from college.
• "The Mick" (7:30 p.m., Fox/Ch. 13): A popular kid in Chip's class comes for a sleepover.
• "Fresh Off the Boat" (8 p.m., ABC/Ch. 4): Louis worries about Grandma's safety in her new motorized wheelchair; Jessica fears Emery is a hoarder; Eddie tries to hustle his way into Evan's business.
• "Trial & Error" (8 and 8:30 p.m., NBC/Ch. 5): Josh's strategy of making another suspect look guilty goes awry; the jury visits the crime scene at the Henderson home.
• "American Experience: The Great War" (8 p.m., PBS/Ch. 7): In Part 2 (of 3), the United States enters the war and drafts a huge army, which heads for France.
• "Prison Break" (8 p.m., Fox/Ch. 13): Michael and Whip attempt to escape from Ogygia; Sara's investigation into Michael's reappearance leads to an uneasy reunion.
• "iZombie" (8 p.m., CW/Ch. 30): Liv, Clive and Ravi suspect foul play was involved in a fatal car crash.
• "The Detour (8 p.m., TBS): Robin prepares to go away for a long time; Nate tries to piece together what went wrong.
• "Imaginary Mary" (8:30 p.m., ABC/Ch. 4): Andy considers auditioning for the school musical; Dora creates her own feminist musical.
• "Marvel's Agents of S.H.I.E.L.D." (9 p.m., ABC/Ch. 4): The identity of the Inhuman leader of the resistance is revealed.
• "The Fosters" (9 p.m., Freeform): Callie must either take a plea deal or go to trial and risk a longer sentence; Stef and Mike hunt for leads in the Martha Johnson murder. (Season finale)
• "Face Off" (10 p.m., Syfy): The final five must create a representation of a Hawaiian God or Goddess
• "Outsiders" (10 and 11 p.m. WGN): Conditions on the mountain force the Farrells to make their presence felt in town.
• "Rebel" (11 p.m., BET): Rebel and TJ team up to help a homeless Iraqi War comrade.
• "Imposters" (11 p.m. Bravo):As Patrick and Maddie exchange marriage vows, the showdown between con artists and FBI agents plays out. (Season finale)
• "The Americans" (11 p.m., FX): Gabriel makes a crushing revelation about Philip's past; Stan and Aderholt draw a fly into their web; Oleg and Ruslan ambush their first suspect.
• "Cosplay Melee" (11 p.m., Syfy): The cosplayers take inspiration from video games.
• "Detroiters" (11:30 p.m., Comedy Central): Tim and Sam discover that the Chrysler executive they ran over has led a terrible life ever since. (Season finale)