While the title might seem generic and unassuming, “A Teacher” might be one of the most controversial TV series to come around in quite some time. The series tackles the issues of sexual abuse against a student by a teacher and not only shows the nitty, gritty of the actual sexual encounters but also the ramifications of the abuse. And due to the sensitive nature of the series, FX has gone ahead and released a PSA to go along with the new trailer for the show.