The antonyms for the term "light entertainment" would be heavy or serious entertainment. Heavy entertainment would encompass topics that are dark, heavy, and intense, often delving into controversial subject matter. On the other hand, serious entertainment would address issues that require more thought and reflection, such as political dramas, documentaries, or investigative journalism. Both heavy and serious forms of entertainment align more with intellectual pursuits, whereas "light" entertainment is often seen as mindless, easy-to-consume content. While different forms of entertainment cater to different audiences, it is important to have a healthy balance of both light and heavy entertainment to satisfy diverse interests and stimulate thought.