Just started watching this & caught a few things:
1)In the very first episode Mrs. Wardwell (eventually Madame Satan) picks up the girl in the street & says she'll take her to Dr. Saperstein. Dr. Saperstein was the name of the warlock doctor that took care of Rosemary in Rosemary's Baby.
2)They totally stole The Satanic Temple's Baphomet statue. I thought they sued them over it....wait..It's definitely their statue & settled with Warner Bros. over it.
3)Holy Huck they're singing a song written by Charles Manson in episode 4!!! It's the song they're singing when Sabrina goes into the choir room & what she sings for her placement in the choir.