they show clips of their concerts but never stream the whole show. there's a paid subscription service on a variety of tv networks where you can watch the whole live shows though (Girl's Factory 2015 & Folk Mura | FujiTV) for example. Personally, I wouldn't pay to watch online and just wait until they release the DVD/Blu-Ray but it's up to you. They ocassionaly do random streams of the members doing other activities or just stream when they want to release new info. There's going to be a one soon (today around 7pm Japan time) so you can get a sense of what they do.

http://www.ustream.tv/channel/momoclotv

Schedule shown during the UST
7/31-8/01