'With real-time information, on the spot reports and in-depth investigations, it tells you what's on in the world.'
The above is a quote from a media network's self-introduction on its television news program. Does 'what's on' mean 'what's happening' here? Thank you.
Good morning, jiaruchan.
(1) I agree 100% with MASM.
(2) I personally think that "what's on in the world" is not quite idiomatic.
(a) It should be either "what's going on" or "what's happening/ occurring."
(3) As MASM said, "What's on" can = What program is on TV/radio.
(a) That little word "on" is used in many, many ways.
(i) For example, a friend might ask: Hey! What's on for today? = That is, what plans do you have scheduled for today?
If you get some extra time, it would really benefit your English if you studied a good bilingual dictionary that has the many phrases with "on."
Have a nice day!