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We talked in this week's show about very smart computers - including Watson, the supercomputer and Jeopardy! champion. Want a little taste of Watson in your own home? Gadget guru Ben Saren has some pointers on how the newest gadgets can spruce up your humble abode, from a smart scale to replace the one languishing in your upstairs bathroom to a thermostat that knows exactly how late you like staying in bed on the weekends.