Does the TiVo Stream Transmit over a wireless network or does it create one? If you have a wired network without wireless in your home, will the TiVo Stream work in your home? Does the TiVo Stream transmit directly from the TiVo Stream box or from the Roamio Plus or Pro box? or Does the "Sream" only work over an existing wifi network? If you are out of the home you would receive the "Steam" over someone else's wireless network?