Year range Quick Draw McGraw

Currently, the year range for Quick Draw McGraw is listed as 1959-1962: https://www.imdb.com/title/tt0244156/reference/ 

However, as you can see, all episodes are from 1959-1961: https://www.imdb.com/title/tt0244156/episodes/?year=1959 

TMDB also has a year range of 1959-1961: https://www.themoviedb.org/tv/38960-the-quick-draw-mcgraw-show/season/3 

The same goes for Moviefone: https://www.moviefone.com/tv-shows/quick-draw-mcgraw/uJkcGwtQ718sdVPgF34cY/where-to-watch/ 

Can a staffer look into this and fix this please?