My Little Pony: Venskab er ren magi

Boomerang
Starting from, "My Little Pony: Venskab er ren magi" airs on Boomerang. It aired 11 months and 26 days from the original premiere. After 2 though, the  moved to Nickelodeon, where they'd reair previous episodes.

Nickelodeon
"My Little Pony: Venskab er ren magi" airs on Nickelodeon since the premiere of 3. It have broadcasted all seasons and films, since the start.

Cartoon Network
The also had its debute on Cartoon Network Scandinavia, along with the  version, available on the  audio track of the channel. They've only broadcasted the first 2 seasons.

Trivia

 * 1 though 3 have been released on DVDs.