IIRC, the decision to crop out T'Pol's nude backside had to do with Harbinger airing weeks after Janet Jackson's "wardrobe malfunction" at the Super Bowl, and as such there was a lot of pressure on American television in general to avoid nudity, even implied nudity at the time.UPN was, and I use the term because it is the one most commonly used, schizophrenic in their nudity policy.