Yeah I swapped out the passive with an amplified one. I get CBS now but it drops out sometimes. NBC still kinda does and FOX too. I'm still trying to find a good place for the ears.
XBMC is Xbox Media Center. http://xbmc.org/ Library software for an HTPC. Movies, music, and TV Shows. If you have an antenna or cable hooked up to an HDHomerun device you can integrate the OTA live TV with XBMC over your network. Pretty neato stuff.