...because the cameras point at the talking heads far longer than they do at the parade. Talking heads spewing an endless stream of inane babble, a one-second shot of something in the parade, talking heads, a different talking head in a carefully-selected and screened crowd. An average ratio of thirty to one "talking head" versus "actual parade".
If you want actually to see the parade, you're out of luck, because what comes from the TV is "talking heads with some parade."
So she gave up and went back to bed. I believe I'll join her.