Interesting. The robot sound effect used in this 1962 episode of Hazel was re-used several years later in at least one episode of Star Trek TOS. Also, I suspect only the upper part of Robby the Robot is being used. That big white apron seems to be concealing a man's legs
Robby didn’t have any lines in this role, it appears. As a replacement for Hazel he apparently was supposed to be female, thus the rudimentary drag elements of the apron and cap.