The PlayStation TV is a small black box that connects to a television set via HDMI cable. Inside of that box are the guts of a PlayStation Vita handheld gaming system, and as such it can play PlayStation Vita games. It can also play PSP games, PS One classics, stream PS4 and PlayStation Now games, and stream TV shows and movies.
As Amazon Fire TV bursts onto the market to compete with streamers like the Roku 3 and Apple TV, you may be wondering what these set-top boxes offer over cheaper streaming sticks, specifically Google's Chromecast and Roku's Streaming Stick. Each has its own advantages and drawbacks, and it really comes down to what features you want, and possibly what tech ecosystem you are already a part of.