Haizlip died  of cancer in 1991 at 61. (Image via video still)

I love documentaries, and Mr. SOUL! — a doc on the revolutionary PBS show SOUL! hosted by Ellis Haizlip — looks like a can't-miss.

Haizlip was a true trailblazer, committing to putting the full range of Black people on TV, from crazy to culture-rattling to cute to artistically genius.

Now, Haizlip, who was also gay, is being memorialized by his niece, filmmaker Melissa Haizlip. Trailer to follow ...