Amid the many challenges television service providers were already facing, along came an Ottawa company making devices with digital recording capabilities and electronic-guide functionality for those who rely on over-the-air signals for their TV. Nuvyyo Inc. is the maker of a device known as the Tablo. Made available in Canada and the United States in May, the Tablo is the hardware behind a personal video recorder (PVR) system. It connects to an antenna, which the user must provide separately. The user also needs to provide a USB hard drive for storing content that's recorded, as well as...