Update: I'm told that this command-line option works in Windows 7, as well.  So it's not a change for Windows 8/2012.  I just didn't have a Windows 7 machine handy to test it.

The command-line parameters for the Event Viewer have changed in Windows 8 (and Windows Server 2012, I assume).  To launch Event Viewer to connect to another machine from the command-line, execute the following:

eventvwr -computer:<hostname>

I just ran Sysinternals' strings.exe command to determine how to do this.  If I figure out more of the parameters, I'll update this post.

Rob