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New submitter Joel Lehtonen (3743763) writes "The Finnish national digital TV broadcaster Digita is co-operating with startup company Koodilehto to start transmission of Bitcoin blockchain and transactions in Terrestrial Digital TV (DVB-T) signal that covers almost the entire Finnish population of 5 million people. The pilot broadcasting starts September 1st and lasts two months. The broadcast can be received by a computer with any DVB-T adapter (like this $20 dongle). A commercial production phase is planned to begin later this year."

25-year electronics veteran Conrad Lee noticed that commodity multi-channel security DVRs have both more channels than a typical household needs and more capabilities than their makers advertise -- at least, with some creative re-use of their video feeds. With a home-grown controller hooked up to an otherwise unused video channel, a run of the mill security DVR can be used as a command center for household items, like lights, locks, thermostats, cameras, or whatever else you think of) by means of controls both old-fashioned (the ubiquitous X10 devices, some of which you probably have stashed in a drawer) and new (Z-wave). He showed off his system at last month's Maker Faire -- take a look (video below) at what his clever hardware re-use makes possible, and at Lee's controller. It means giving up one (relatively) inexpensive channel, to gain capabilities that would cost quite a bit more in a ready-built system, like smart-phone control and pan/tilt control for cameras. (Alternate Video Link)