Stargate SG-1 is a strong option for learners who already feel comfortable with English and want a more demanding challenge. At an intermediate level, the main story should be easy enough to follow. Learners will hear plenty of useful natural English, but some lines may still require a second listen. Conversations usually leave enough room to process what is being said. If your English is close to B1/B2, Stargate SG-1 can be useful for learning topic-based vocabulary.
