I grew up watching The Rifleman and have watched re-runs off & on for years - Currently watching even more re-runs. I always enjoy the love between father & son. The lessons learned which many kids today are not taught. Great shows to watch with your kids. Teaches good morals, good conduct, etc. while watching really good westerns.
Yes it shows the good & the bad guys while also showing the selfish reason so many bad guys get killed And is a great lesson that kids today aren't getting.
The is one series that I don't need to tell you what it is about. I watched reruns almost everyday and cannot tell you if there are in B&W or have been colorized. I believe they are still B&W - if so, they don't need to be colorized. They are just that good.