Er, its kinda explained fully in the BoE Letter November 7, 2014 "Re: Arrangements to view JW Broadcasting monthly programs."
So are congregations/KHs ACTUALLY doing this? Oh yeah, Da Furious' is! Haha! Anyone else?
What is interesting is that although congregations who meet at the same KH could have a combined arrangement, evidently, in the case of Da Furious, they aren't - hmmm maybe that's actually the most 'revealing' thing about this? Do the congregations get on together? Would you want to combine with Da Furious?...
That's all folks!
DarK SpilveR