How do you keep your passengers happy? Whether it’s the spacious nose of the plane or the tightly packed tail end, one solution is to offer onboard entertainment. Hopefully the live television or blockbuster movie would alleviate the discomfort of a tight seat.

In-flight entertainment (IFE) on new planes no longer means staring into tiny, hard-to-see overhead monitors. They have become sophisticated seat-back computers loaded with more movies than most multiplex cinemas, or wireless setups that stream content to your smartphone or tablet. But it isn’t just about movies or music anymore: IFE systems now include Internet connectivity, interactive maps, and even surround-sound audio. And you don’t need a premium class ticket to enjoy some of them.

We take a look at the latest in IFE systems. And unlike these in-flight concepts, the technologies you see here already exists, and most are either in service or being rolled out.