<P> ABC News programs, including ABC World News Tonight, are shown for several hours a day on the 24 - hour news network OSN News in MENA Region . </P> <P> In the United Kingdom, the program was shown Tuesday through Fridays at 1: 30 a.m. on BBC News, a channel that is frequently simulcast by BBC One at this time, meaning the program was broadcast on analogue terrestrial television in many parts of that country until the digital transition . The newscast was aired on a delay, in part because of the need to remove commercial advertisements, as the BBC's domestic channels operate as commercial - free services via a television license fee, replacing them with promotions for different BBC News special programs . The program was replaced by Asia Business Report and Sport Today on June 14, 2011, but later returned to the channel on August 20, 2012 . It is also available on the BBC's on - demand service BBC iPlayer for 28 days after its domestic broadcast. The program was replaced again by Asia Business Report and Sport Today on March 30, 2015 . </P> <P> In Australia, WNT airs every morning at 10: 30 a.m. AET on Sky News Australia . In New Zealand, WNT is shown at 5: 10 p.m. on Sky News New Zealand . </P> <P> In Hong Kong, the program was broadcast live on TVB Pearl daily at 07: 30 until 08: 00 HKT until May 31, 2009, when it was replaced by NBC Nightly News . In Japan, it airs on NHK BS 1 as part of the weekday morning program Ohayo Sekai (Wake Up To The World), and in clip form during the English language educational program ABC News Shower . </P>

Who anchored abc world news tonight from 1978 to 2005