 The logo was modified to a three-dimensional metallic design.Coinciding with this, digital television was introduced to most of the network's coverage area on 1 January 2001 – this was soon followed by the gradual introduction of widescreen and high definition programming.In 2002, to celebrate seventy years of the Australian Broadcasting Corporation, ABC-TV's logo reverted to the "over and under" design seen in the previous decades, however it retained the three-dimensional metallic design.