Both systems offer four, outdoorready, 720p HD night vision bullet cameras (night vision up to 85 feet) that output full, uncompressed video without latency.

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Dropcam HD includes night vision, digital zoom and two-way talk back so users can respond to what they're watching as it happens.

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It also uses a tether and can stay aloft for 12-hours on a single ground-station battery, letting it spy from afar with on-board HD, night-vision and thermal cameras.

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Jana Bennett, director of BBC vision, said the HD would make programmes "even more powerful and outstanding".

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It's probably just a little too late to ask for one of these for the holidays, but you can still plan for next year (hey, Valentine's Day is coming, right?) by checking out Sound and Vision's review of 70-inch HD-ILA Liquid Crystal on Silicon (LCoS) set.

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For those wanting to expand their creative vision with video, the D5200 D-Movie HD video mode is capable of capturing Full HD 1080p, with the option to apply Nikon's Creative Effects.

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We expect the three regular channels to be mostly stretch-o-vision at first, but there should be plenty of new HD content when they start to launch their original programming.

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It was the natural progression of a continuum of ideas, a singular vision that video would evolve from a consumer DV camera to every smart phone with an HD video recorder and live network connection.

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