These are title cards for the show's episodes, used to represent them on the episode pages, as per custom of most TV show wikis on Wikia.

Feel free to add in your own episode title cards(button at the bottom) if you have them and you find that they aren't on the wiki already. If your screengrab of the show contains a channel logo, try to edit it out, but it's OK if you can't and someone can always upload a better version at a later date. 20 of 52 title cards are here.