This is a shortened version of the 1945 Republic serial "The Purple Monster Strikes," which was released to television in 1966.
The Purple Monster
Dr. Cygnus Layton
Craig Foster
Sheila Layton
Hodge Garrett
Stewart
Prof. Crandal
Helen
Marcia
Emperor of Mars
Prof. Benjamin
1999
1955
1977
1982
1997
1985