My mother didn’t let me watch anything but Thomas and Friends. She said after watching Rugrats or Spongebob i would turn into a disobedient brat, but after watching Thomas I was apparently well mannered and well behaved. I ended up becoming a soft well mannered programmer. Fuck you Thomas!
I avoid showing Fireman Sam to my 4yo son because otherwise he channels Nicholas—the self-centered, boastful troublemaker—so much that he's not manageable.