This is the BBC's Annual Special Broadcast to Antarctic Researchers as they welcome the sun back (longer days). "Here Comes the Sun" is a yearly play, there are usually birthday greetings, and well wishes from relatives back home- a very different program for the staid BBC.
In 2016, I received them on 5985 and 7360. Last year, only a weak copy on 7360. This will be the fourth year in a row I received them if I catch them today.
Try these frequencies: (Updated 2115z from an article I read):
5985
9890
7360