During a colonoscopy, a doctor examines the inside of the colon and rectum by inserting a colonoscope, a thin, flexible instrument that sends images to a TV screen or computer.

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Tiny upstart Sling Media is now a veteran in this category, with a nearly two-year-old device that tosses video over the Web from a TV screen to a computer or portable device.

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You remember what it used to cost you for a flat-screen TV, or a laptop computer.

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An optional Skype Communication camera (TY-CC20W) allows the consumer to communicate with friends and family via a large TV, rather than on a small computer or smart phone screen.

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And, of course, there is the biggest problem of all: No one has the room or the money for both a big computer monitor and a big-screen TV.

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