It extremely unlikely that Princess would want to pay for viewing the Oscars. I doubt if there would be sufficient fans aboard to warrant it.
They tend to keep showing the same
old movies & concretes over & over every month with a few new movies thrown in occasionally to keep the crowd reasonably happy. On any cruise I'm fortunate to catch 1 or 2 movies we haven't seen previously. As far a special events go they seem to limit it only to Superbowl.