It looks to me like listening practice, really. This is something that people usualy do when they want to learn a new language - we are learning languages not b

It looks to me like listening practice, really. This is something that people usualy do when they want to learn a new language - we are learning languages not by sitting in class but through immersion. I'm wondering how the results would look like if they'd introduce third group - people who actively watch/listen to Chinese TV shows or podcasts.