페파 피그 S1

This is the easiest show to understand I’ve come across so far - as long as you don’t mind children’s entertainment, this is great for beginners to start working on their listening skills.

The episodes are only 5 minutes long, and contain very simple, episodic stories. Words and phrases are repeated often, and the narrator describes the characters’ actions as they are shown on screen, so you’ll hear a lot of simple conversations and descriptions of everyday life.

The official Korean youtube channel has 16+ hours worth of episodes to watch, so there's plenty of listening material available, providing you can endure that much Peppa!