Documentaries on Bangladesh to share with foreign friends

Hi, I'm currently studying in the UK and have made some amazing friends from all over the world. We've been exchanging stories about our cultures and countries, and now my friends are super curious to know more about Bangladesh.

I want to share some good documentaries with them that give a solid understanding of Bangladesh, especially on its history.

I'd prefer documentaries or videos that are available for free (maybe on YouTube or other platforms) so it’s easy for them to access.

Looking for recommendations. Thanks in advance.