One posts a video like this with a certain degree of apprehension, but what the heck: Harry is in good shape, and that's all that matters.

  He underwent a colonoscopy on live TV this morning, and - like Katie Couric's on "Today" a decade ago - this serves to remind what has to be done, and what should be done.

  As if any reminders are needed after this, but...colon cancer often has no symptons, and sometimes no symptoms for years, which is why a colonoscopy screening is so vital for anyone over 50.

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