streaming/recording Radio 1 video?

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Hello everyone,
it's Sunday and Radio 1's Official chart is live, including video stream on bbc.co.uk/radio1
Can anybody advice a command to get that stream into get_iplayer?
I've tried (unsuccessfully) commands such as --url="http://www.bbc.co.uk/radio" and --pid=amevt_uk_8 (this PID is shown when right-clicking the EMP player window)
By viewing page source I can get the URL for player, it's
id="bbc_emp_embed_livevideoemp" data="http://www.bbc.co.uk/emp/releases/iplayer/revisions/749603_749269_749444_3/749603_749269_749444_3_emp.swf"
but I cannot get a stream URL anywhere.
Hope someone can help.