If you are looking for the info, here is everything you need to know about the format, where to find it, and the state of the English dub. The Appeal of the Uncensored Version
If you’re looking for the most "updated" way to watch, here are your best bets: nande koko ni sensei ga uncensored dub updated
The official Blu-ray release includes the English dub paired with the uncensored video. This is the gold standard for quality and the best way to support the creators. If you are looking for the info, here
Purchasing the Blu-ray is the only way to guarantee 1080p uncensored quality with the dub. It also includes the OVA (Original Video Animation) episodes, which are even more explicit than the standard season. Purchasing the Blu-ray is the only way to
If you are a fan of "ecchi" comedy, you’ve likely heard of Nande Koko ni Sensei ga! (Why the Hell are You Here, Teacher!?). The series became a viral sensation for its hilarious, high-stakes situational comedy and its "borderline" content. However, for many fans, the standard broadcast version leaves a lot to be desired due to heavy censorship.
The broadcast version of the anime uses creative (and often frustrating) censorship techniques—like steam, stray light beams, or conveniently placed objects—to cover the more explicit fanservice.