Harry said when he was 7, he "wanted to be a Flintstone". In the first episode, he said he was 34 years old, meaning he was born in 1950. The Flintstones didn't premiere until 1960, meaning they weren't around when Harry was 7.
Sara tells Harry that she wanted to be a nun ever since she saw Audrey Hepburn in "A Nun's Story." This movie would hardly serve as a recruiting aid for a nun since it's about one who has serious doubts about her choice to be a nun and ultimately leaves the church.