Sony Corporation is the electronics business unit and the parent company of the Sony Group, which is engaged in business through its four operating segments – electronics (including video games, network services and medical business), motion pictures, music and financial services. These make Sony one of the most comprehensive entertainment companies in the world. Sony's principal business operations include Sony Corporation (Sony Electronics in the U.S.), Sony Pictures Entertainment, Sony Computer Entertainment, Sony Music Entertainment, Sony Mobile Communications (formerly Sony Ericsson), and Sony Financial. Sony is among the Worldwide Top 20 Semiconductor Sales Leaders and as of 2013, the fourth-largest television manufacturer in the world, after Samsung Electronics, LG Electronics and TCL.