Mexican novel "El retrato de Dorian Gray"

On 1969, Telesistema Mexicano (known today as "El Canal de las Estrellas" or simply "Las Estrellas") made a TV drama based on Oscar Wilde novel "The Picture of Dorian Gray", with the young actor Enrique Alvarez Felix as Dorian Gray. Is little known about this version of the adaptation, on IMDB is said that has been only 3 episodes aired or even made. On the spanish Wikipedia, although ia never mentioned how many episodes were made, is said that it was filmed on a b/w format, but also the first TV novel transmitted on color, suggesting that might have two versions of the TV novel.

Is a hard to find or lost TV show, since there are a lot of blogs and even mentioned on the biographic material about Enrique Alvarez Felix, but on internet any fragment or episode has surfaced, except for a title card (on b/w), one production still (also in b/w) and a promo still of Alvarez Felix (in color)

Film affinity page: https://www.filmaffinity.com/mx/film626553.html