Dunno about tonight, but Saturdays should be on one of the main channels from all the countries taking part.
Last year I spotted:
RTP International, ARD 1, TVE International, TRT International, TV Romania International, RTS Serbia, ERT Greece, MKTV Macedonia, Slovenia 1, RTV Montenegro, and of course our own BBC 1 on 28E taking the pictures.
Andorra Austria Belarus Belgium Bulgaria Croatia Denmark Estonia Finland F.Y.R. Macedonia Hungary Ireland Iceland Israel Latvia Lithuania Moldova Monaco Netherlands Norway Poland Portugal Romania Slovenia Switzerland
And our BBC 3 is taking it according to the BBC web site