Plex Media Player is designed to look good on your big-screen TV, which means it runs full screen, relies on a keyboard or compatible remote, and can be fiddly to set up. It is a freeware plex client application that's straightforward and user friendly.
Here are some screenshots to illustrate the features and user interface of this application:
Unity Web Player
J. River Media Center
KMPlayer
AVS Free Media Player
Media Player Classic - Home Cinema