Back on July 31,CBC and TVO shut off most,if not all of their analogue transmitters in Ontario(if not the rest of Canada also.):
In the Peterborough,Ontario area:
CBLFT-12 44 SRC is no longer on air and needs to be removed.
CICO - 18 TVO was also shut off.
I can't speak for other areas.
note: CIII Ch 27 'Peterborough' Global Television Network 'GTN' is uspgrading to HD on January 9,2013.
Yay!Finally,2 local HD stations -ch. 27 GTN and 35.1 CFTO -CTV 'Peterborough'