What was the 90's sci fi tv show about 2 brothers from outer space?

The 90s sci-fi TV show you're referring to is likely "Alien Nation," which explores the lives of two police officers, one human and one of the alien "Newcomers," who are trying to coexist in a society where aliens have integrated following their arrival on Earth. The show delves into themes of prejudice, acceptance, and cultural differences. It originally aired in 1989 but gained a following into the early 90s, spawning several TV movies as well.