Harsher in Hindsight: Safe to say that anytime the boys were tackled with anything of a sexual nature (such as a friend of theirs having some pornography for a lesson about good and bad sources) are a lot harder to watch since Cosby's rape allegations were brought into light.
Special mention goes to the Double Cross episode where Mudfoot's Jewish Rabbi friend tells Fat Albert about his experiences as a Jewish prisoner in the Nazi concentrations camps. We also see the tatooed numbers on his arm. Fat Albert later saves the life of the racist gang leader George after George accidentally slipped and hung for his life off the roof of a Synagogue that he had just vandalized. Despite Bill Cosby's in-episode comment that Fat Albert should probably have waited for the rescue professionals instead of risking his own life, the scene clealy indicates that George lost his grip before they had time to set up the rescue ladder. He survived only because Fat Albert was close enough to catch him.
The second half of the buck-buck episode deals with Fat Albert moving away, and how it affects him and rest of the kids. Their music number deals with the bittersweet nature of having to leave old friends behind and make new ones in a new neighborhood, but happily, it turns out that his family's only moving into the next house down from his old one.
The ending of the Live-Action Adaptation, when Doris goes to visit her grandfather's grave and sees Bill Cosby and his childhood friends (now old men) paying their respects to her grandfather as well (as it turns out that he was Cosby's friend who Fat Albert had been based off of). As the camera pans by each of the friends, it flashes to their younger fictional selves, when they were young and happy. A happier Tear Jerker comes after, as the group chases each other out of the graveyard, clearly still just as energetic and playful as they were as teens.
What Do You Mean, It's for Kids?: Several episodes, including the ones about prison (which had swear words) and gang violence (which had a young boy get killed in the crossfire of a gang war), had material that many parents would probably not want their kids to watch, at least alone. There was even an episode about a teen mother, which didn't go into detail about how babies were made. Parents were likely supposed to talk with their kids about sex and avoiding teen parenthood. Another episode dealt with ST Ds, and a doctor even mentioned a couple of the diseases by name. The same episode also had mentions of sexual intercourse, and Bill told the viewers that those words were something they should ask their parents about. That episode managed to handle the subject of ST Ds in a very tasteful fashion, and the girl who was involved with the guy who had an STD was not slut-shamed. Neither of the students who had that disease were looked down upon or condemned, and Albert was only concerned about his friend's health and well-being. The point of the episode was taking responsibility for your actions - not just for your sake, but for others. Few kids' shows out there touch such heavy topics. In the Double Cross episode, George and his gang were clearly White Supremacists. Near the end of the episode, he launched into a blunt tirade explicitly condemming Latinos, Jews, Catholics, Italians, Asians, and Blacks. Fat Albert also visits Mudfoot and a Rabbi who tells him about the Nazis, Antisemitism, and the Holocaust.