Welcome to Screen Gab, the newsletter for everyone who loves “My So-Called Life,” “Freaks and Geeks” and “Reservation Dogs.” Those are the three TV series about adolescence to which TV critic Robert Lloyd favorably compares Amazon Freevee’s “High School,” premiering Friday, in his recommendation this week. —Justin Chang Based on the 2019 bunk-bed memoir by Canadian identical-twin singing sisters Tegan …
