There was a guy named Bill Alexander who was from Eastern Europe and had a PBS show in the Late 1970's and early 1980's. He had a great accent and coined the term "happy little trees" in a sing-song voice. He would talk about art and life as he painted, and it could get comical.
He painted landscapes primarily and, like Ross, had a line of paints, brushes, knives and other supplies. Still Available if you search the web.
His Landscapes, particularly his mountains were incredible, he did a full painting start to finish in his half hour, no time lapses, nothing- just his wet-on-wet technique.
He retired eventually and passed away in the late 1990's I recall. Bob Ross came later and was equally good, expanding the technique into florals and other subject matter. I hadn't heard that he passed away, it is too bad.
Once Bill Alexander said (I paraphrase) "The trouble with so much modern art is that the artist suffers when he paints it! Remember, if the artist suffers when he paints, the viewer must suffer also when he looks. Paint with joy!"