The following is a list of events affecting Canadian television in 2012. Events listed include television show debuts, finales, cancellations, and channel launches, closures and rebrandings.
Series currently listed here have been announced by their respective networks as scheduled to premiere in 2012. Note that shows may be delayed or cancelled by the network between now and their scheduled air dates.
The following shows will air new episodes on a different network than previous first-run episodes: