WNGS has posted a map of their Over air signal here,
[Link: wngs-tv.com]

I disagree with this statement on their web page..
“WNGS -TV Springville • Buffalo is a full powered, must carry television station”
I live in what the FCC considers Buffalo's DMA and Time Warner Cable does not carry them in this market (Time Warner Cable does carry all the other full power stations in Buffalo including WNYB, just not WNGS in this market), although WNGS is carried by Directv and Dish Network in this area.

Still by this computer model they have posted it looks like Toronto has a good shot at getting them.