I don't think anyone would describe US television as "dismal". Maybe you've missed The Wire, The Sopranos, and Deadwood but there are some wonderful programs being produced in the US these days. Of course, there is some serious dross among those gems. Having seen a fair amount of Canadian television, I can tell you it contains some serious dross as well.

And yes, I don't think a show demonstrating foreigners lack of knowledge about US culture would be produced here. That sounds like a very boring show.