Minha sugestão se baseia em como chamamos no Brasil esse tipo de programa, não encontrei nenhuma referência equivalente com o termo de origem, que vem de um programa de 1972 com este nome:

https://en.wikipedia.org/wiki/After_school_special
"The American Broadcasting Company coined the term after school special in 1972[1] with a series of made-for-television movies, usually dealing with controversial or socially relevant issues, that were generally broadcast in the late afternoon and meant to be viewed by school-age children, particularly teenagers."

https://www.quora.com/What-does-were-a-regular-after-school-...

"Afterschool Specials" were a series of made-for-television movies that aired on the American ABC network from 1972 to 1997 and usually dealt with controversial or socially relevant issues. They were generally broadcast in the late afternoon and meant to be viewed by school-age children, particularly teenagers.

So, if someone says "We're a regular after-school special," they're probably humorously referring to a real-life situation filled with the sort of teen drama and angst typical of those movies."

https://www.fatosdesconhecidos.com.br/5-series-adolescentes-...

"A indústria televisiva nos preenche com várias séries adolescentes maravilhosas. Nos últimos anos, está cada vez mais comum acrescentar uma dose de suspense e criaturas sobrenaturais aos dramas adolescentes."

http://www.boxpop.com.br/as-melhores-series-adolescentes-da-...

"Ainda que os Estados Unidos seja pioneiro em fazer séries para o público adolescente, a Inglaterra marcou território também no assunto ao produzir o drama juvenil Skins, em 2007. "



--------------------------------------------------
Note added at 6 días (2019-06-17 11:12:28 GMT) Post-grading
--------------------------------------------------

Muito obrigada, Maria Isabel!