ON - Barrie/Sault Ste. Marie/Northern Ontario - OTA
I was interested in this thread, so I just thought I'd interject some points of note in regards to the whole Wiarton and picking up channels situation.
With All that water, have you tried to point your antenna West towards Alpena, MI?
They have an OTA Digital CBS Station affiliate out of Alpena (WBKB).
WBKB-DT - 20kW - Channel 13
WBKB-TV - 316kW - Channel 11
With all that water, you might be able to pick it up.
They also have an OTA Digital PBS Station affiliate (WCML).
WCML-DT - 200kW - Channel 57
WCML-TV - 100kW - Channel 6
It might be worth a shot. Unfortunately there are no other affiliates that are close enough, the other affiliates are either out of Sault Ste. Marie, MI or Traverse City, MI or Cheboygan, MI...which would have to travel over a large part of land to get to you.
Good luck either way.