The Science Hour - "Science news and highlights of the week"
Science in Action - "The latest science research and news stories from all over the world" There is usually some overlap with "The Science Hour" but still worth getting.
Discovery - "Explorations in the world of science." This usually focuses on one topic.
Space - "Stories, opinion and debate from the final frontier"
and in the IT field there is:
Click - "Technological and digital news from around the world."
Tech Tent - "Your weekly status update on the technology business "