I remember watching the reruns when I was a kid in the 1970s. I liked the show but I don't remember much about it except that the aliens could be identified by one of their fingers.
ditto for me except the reruns wouldve been mid 80s. I quite vividly remembered the narrated intro, and the fact the invaders fade to vanishing when they're killed.
checked out a random episode about a month ago. found it pretty dated tbh, and david vincent slightly annoying and charisma-less