All of the episode titles in season 8 are lines that were said in season 1.
"Hello Brother" is a line said by Damon at the end of the first episode in season one. It is incidentally Damon's first line of dialogue in the series.
Damon is seen reading "Fifty Shades of Grey." Ian Somerhalder launched a social media campaign for the role and fans voted strongly for him to play Christian Grey in the movie. The role instead went to Jamie Dornan.
Georgie says "Come on, you're practically Indiana Jones" to Alaric. In season 1x6 of Legacies, "Mombie Dearest", Josette Laughlin says to Josie in answer to what she first thought of Alaric that "I thought he looked like Indiana Jones".
First appearance of Sybil, Georgie and Seline.