Further, the full 24/7 BBC World News service USED to be available from other legal means, but then that was CEASED years ago once it was decided to offer BBC World News in the US (it was available in Canada before being offerd in the USA), and ONLY via MVPD's like cable and sat AFTER all BBC World tramsmissions were no longer aired on BBC America, the channel that now airs US repeats like
Star Trek and
CSI: Maimi. There are some legal apps for bits and pieces of BBC News stories that may have also aired on the World service, often short blips of about 2-3 minutes apiece, and that is a different offering and experience.
AFAIK BBC World (always a commerical venture of the BBC) is NOT offered in any other way in North America except though an MVPD-cable or sat or on-line MVPD. Now, in other parts of the world (such as Africa or Middle East), I think BBC World News service may still be "freeview" via a dedicated sat channel, or free on-line with from certain countries that have no exclusive rights agreements with MVPD's. Many services are now aware of many VPN services batch of IP addresses and may block those from accessing the live feed of programming.
BBC World News is more than just the newscasts. It offers several BBC news/documentary regular or special programs such as Panorama, HARDTalk, Newsnight, and more. US Public TV stations (not as part of the PBS service or offered programs in any way) do have the rights secured by KCET, Los Angeles, to air a few, select newscasts (I think ONE
specefic morning and ONE
specific evening newscast), BBC World News
America and--if the rights are still in place--a weekly abriviated version of Newsnight, but that is it, and the only
LEGAL way to view any transmissions from BBC World News service in the USA without having to pay for it via your cable or sat or on-line MVPD. Or you can move to Canada

.