A popular channel that shows different cartoons from past to present, Cartoon Network has a massive following especially children and young adults and those who find it nostalgic to watch classics. There are numerous free desktop wallpapers that you can download. You will find some amazing, zany high resolution images of popular characters such as Tom and Jerry or Ben10. These wallpapers are ideally for kids and those kids at heart who like to reminisce their childhood or to simply make the desktop a lot more fun and exciting as well as child friendly. Since the wallpaper options here are quite colorful and vibrant, it is suggested to add a highlight on the icons so that you will not have a problem looking at file names. Otherwise, it is not a bad idea to use popular cartoons for your wallpaper.
A notable cable network that operates internationally, Discovery Channel has some brilliant things to offer when it comes to free desktop wallpapers. Every time they create a new show, they ideally present new wallpapers as part their promotional efforts and these wallpapers can vary depending on the show. They also offer mobile wallpapers. If you are a fan of shows like Mythbusters, you will find a lot of free desktop wallpapers to appeal to your tastes. If you are a fan of Discovery channel, you will find a lot of amazing new photos and wallpapers available whenever they release new specials or series.