The scene in the first episode where DJ emotionally breaks down with her son Tommy after digging herself deeper into a pit of denial over the course of the episode that hits an all-time low when DJ forgets Tommy's ear drops. Even more somber is everyone overhearing her on the baby monitor and standing around the table in solemn silence.
In "Mad Max", Stephanie breaking down and confessing to DJ that she's infertile and cannot have kids.
"Oh My Santa". While at the mall visiting Santa with Tommy and DJ, Max gets hit pretty hard with grief after seeing kids with their dads.
Due to Kimmy finding the gifts Tommy Sr. planned on giving his family for Christmas, at least two years after his death, there's an implication that Tommy Sr. died around the holidays.
News broke in December 2019 that the dog that played Cosmo died from complications from surgery.
DJ finding one of Tommy Sr's old suits while making room for Steve. After seeing it, Jackson later admits that it’s finally hit him that his dad’s not coming home after five years.
The Gibbler parents sending a singing telegram to inform Kimmy and Jimmy that they won't be coming to their weddings. Jimmy suspected as much, but Kimmy takes it harder. Worst still, in the original show it was hinted that Kimmy's parents were less than affectionate, but it was always Played for Laughs. Here it’s apparent that this extends to all of their kids and the effects are played completely straight.
In the penultimate episode, Jimmy's innocent question about Stephanie's favorite memory of her mother makes Stephanie realize that it's a struggle to remember anything about her.
Seeing Bob Saget one more time in the role of Danny became this after his death in January 2022, a year after the series ended.
