From the first season episode "The Green, Green Glow of Home" of Lois and Clark: The New Adventures of Superman, starring Dean Cain and Teri Hatcher, these are four pieces of Kryptonite used to try and defeat Clark/Superman. This was the first time Kryptonite appeared in the series. [Private Purchase]
"The Green, Green Glow of Home"
Season 1, Episode #8
Original Air Date: November 14, 1993
Written by Bryce Zabel - Directed by Les Landau