Complex sentence: The Frankenstein Family segment, when Glenn Strange played the monster after Abbott and Costello meet Frankenstein, with TV appearances, live promotions, by then the Universal monster make-up ceased to prompt anything terrifying.
Split into simpler sentences: The Frankenstein Family segment, Glenn Strange played the monster role after Abbott and Costello meet Frankenstein. This happened with TV appearances, live in person promotions, but by then the Universal monster make-up had ceased to prompt anything terrifying.