1 Year Premium Membership - Playchess.com
You can listen to audio commentary during major events, receive live training, play in simultaneous exhibitions against top GMs, watch the TV ChessBase shows and play in league tournaments – all without further costs or obligations.
Download the free client (Version 6) at playchess.com.
Install the program on your computer.
Create an account.
With this you can log into the server, watch broadcast of top tournaments and play games against opponents across the entire globe. There are some restrictions, but you can get full and unlimited access to everything, free of charge, by switching to a premium account.