If the "election blackout" law isn't dumped, perhaps provincial election authorities might decide to have polls in all time zones close at the same hour (i.e. 10 P.M. EDT/EST) in future national elections.
This way, CBC, CTV, Global, et. al. can go live in all time zones with election-night coverage starting at 9:55 P.M. EDT/EST. The first few minutes can be used to "set up" the night and coverage before the polls close and exit poll projections can be announced (in the UK, where there is one time zone and all polls close at 10 P.M. London time, BBC-1 and ITV both start election-night coverage at 9:55 local to introduce and set up election night, and then report exit poll projections "straight up" at 10 P.M.).
Could you imagine if something like this was done in the United States ("I'm Brian Williams with David Gregory and Ann Curry here in historic studio 8-H in New York for NBC News "Decision 2012: Election Night". We'd like to welcome viewers in the Pacific time zone who are now joining us as polls just closed in that area at 8 P.M. Pacific time. For those just tuning-in, we can tell you that an hour-and-a-half ago, NBC News projected that Peter Politician has won the Presidency, and will handily defeat Fred Filibuster by a 58-42 percent margin in popular votes and by a margin of over a hundred projected electoral votes....")??