there's a few news video podcasts in mp4 here (they play on QT7)
http://news.bbc.co.uk/1/hi/programmes/4977678.stm
none really suited to news SL though (we'd need a News 24 or BBC World
QT unicast stream), though the thought of David Dimbleby & his
Question Time guests warbling on within SL does have a warped appeal
Yeah, I tried the newsnight one myself, and (once it had done downloading) was watching Kirstie Wark on a big screen in SL earlier today :-)
Mario.