The document discusses in-flight entertainment (IFE) systems used by various airlines. It provides details on the history and evolution of IFE from early radio entertainment to modern personal screens offering movies, TV shows, games and connectivity. Several airlines including Emirates, Etihad, Cathay Pacific are highlighted for their advanced IFE offerings such as touchscreens, WiFi and mobile connectivity. While IFE improves the passenger experience, it also requires significant investment from airlines of $2-15 million per aircraft. Some airlines charge fees for IFE while others include it in ticket prices. Not all passengers select airlines based on IFE as other factors like price and service are also considered.