Of the American channels that I listed , WICU-DT 12 NBC will likely be received all the time because it is in the red reception zone. WNLO-DT 32 CW , WIVB-DT 39 CBS are in the gray zone and are real stretch and may or may not be received reliably all the time.  . To help you decide WICU also has the digital sub channels , The CW and CBS . 
http://en.wikipedia.org/wiki/WICU-TV.   . WIVB is currently just CBS , 
http://en.wikipedia.org/wiki/WIVB-TV . And WNLO is currently The CW  with some CBS programing ,  
http://en.wikipedia.org/wiki/WNLO. Here is some interesting information at the CW web site , 
http://www.cwtv.com/thecw/about-the-cw