sharing XBMC content between two TV's

I have XBMC via apple tv on one of my TV's. My second TV is a smart tv and recognizes XMBC source via WI-FI.
Is it possible to watch XBMC content on my smart TV, and do I need 'allshare' or something else to install to connect.
Also, how do I 'load' my video libraries with movies and then watch those on my smart tv?
Is that even doable?
Any help is greatly appreciated.

nes2007