When you're a kid -- and when you get older -- you look for reflections of the world you know when you watch TV. This is why Shonda Rhimes was livid during original casting sessions of her GREY'S ANATOMY. She was sent only white actors. I was lucky enough to grow up with Mexicans in my daily life during my South Central L.A. youth. They were our next door neighbors, my classmates, my fellow altar boys in church, our priests, teachers, doctors, librarians, supermarket clerks -- and detectives. One time a scam artist tried to bilk money out of Mom. The con artist was unsuccessful. Two detectives came to our house to get info from Mom. I was a little boy and they both giggled when I said, "Wow. This is better than TV!" Our block, our neighborhood, our circle of friends was diverse and multi-cultural. But, on TV, the first show I recall having a lead Mexican character was the hit 1974 sitcom CHICO AND THE MAN starring the late, great Freddie Prinze. In 1977, there was CHiPS with Erik Estrada as a motorcycle cop.
I still feel that 1950's MYSTERY STREET could have been adapted into a weekly TV series with Lt. Morales dealing with forensics every week -- like Jack Klugman did as QUINCY on NBC in the 1970s. MYSTERY STREET would made a most watchable detective series.
MYSTERY STREET is available on DVD. Check it sometime if you can. Let me know if you share my feeling that it could've been the basis for a good TV series.