OK, I'm fine with the idea of simultaneous substitution, but today it was just stupid.
I was taping the Denver-Houston game on CBS channel 206, and I get the Canadian broadcast again. However, in the 3rd quarter, the Canadian broadcast switches to displaying "First Story" followed by some Emmy pre-show stuff, before it finally switches back to the football game that the CBS station was broadcasting all along.
Who is responsible for substituting the Canadian feed over the US one, and how could such an egregious error occur? This was just stupid. If the Canadian channel is not going to broadcast the entire game, just leave it alone so myself (and probably many others) don't get unwanted programming thrust into our faces!