Orphan Black is awesome. I think everyone should watch. Tatiana Maslany plays a group of women who discover they are clones. They are biologically identical, but each has her own personality, hair and makeup differences and are such diverse characters. Generally, you see one to two of the sisters in a scene, with at most 5 sisters to an episode, so the fact that there was 6 last week took a lot of work on Tati's part!

To give you an example, without spoilers of any kind, here's four of the sisters having a dance party. All the women are played by Tatiana.

https://www.youtube.com/watch?v=DsTc_o5ixU8