On the Sony roku tv I have. I can search for over the air tv channels and it works great but if I want to later on search for new added channels when I turn the out door antenna, it will erase all old channels I have. I wish you would update your software to allow searching for new channels with out loosing any of the old ones.
so the search is just for new channels recently added, it does not include existing channels? it seems odd that there would not already exist a search which includes fresh and existing channels.