I've had confirmation from people I know at the BBC that they *will* be
streaming this year's proms as flac. :-) I asked about this and got the
reply below

Yes, it is correct. There is a longer statement from Alan Davey he
https://radiotoday.co.uk/2017/04/bbc...aming-quality/

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics https://www.st-andrews.ac.uk/~www_pa...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html