As Mr. Lund referred to a few moments ago, when U.S. programs come into this country and Canadian broadcasters simulcast them, the United States does not have restrictions on the number of commercial minutes they can run per hour. Believe it or not, in some of those daytime programs and other programs, fully one-third of an hour program—20 minutes out of 60 minutes—is commercials in U.S. programs. The U.S. producer of that program doesn't produce a different version for the Canadian broadcaster. The Canadian broadcaster has to fill up the difference between the 12 minutes he's allowed and the 20 minutes the Americans take; consequently, you have substantial numbers of commercials. You may find it odd that someone representing advertisers is complaining about the numbers of commercials on TV, but believe me, no advertiser wants to be one among 45; they would prefer to be one among 12, or one among 24.
Now, on the CBC, there's a lot of Canadian programming they produce themselves or purchase themselves. With Canadian programming, you don't have that border problem, and they can actually keep it to 12—or, of course, as they don't have to count promotion of Canadian programming, they can go to 13 or 14, but not to 20.