“Checker Tobi” and “Checkerin Marina” is a German educational children's show that has been airing weekly on KiKA and Das Erste since September 2013. The show is hosted by Tobias Krell and Marina Blanke. In the show, Tobi and Marina explain various topics to children and encourage their curiosity towards the world. The show is produced by megaherz Filmproduction and the BR Television.