Do I need to install aerial wall outlets or is there a wireless solution?
One solution I have used in the past is the HD Home Run.  It is an OTA tuner that outputs to your home WIFI network.  To receive the output, you can use a PC with Windows media player, an XBox or Playstation, or your smart TV if it supports DLNA.

I personally used a PC to receive the signal, and then connected my PC to my TV to view.  The nice part about that is that Windows Media Player has a free program guide for OTA tv, and can act as a DVR.