Streaming in a Business Environment

Long time reader, first time poster. If this isn't the right forum for this issue, please feel free to move it, mods.

I have a setup question for my TVs at work that I'm hoping to get some perspective on... We run a couple TVs in our lobby area. Because of lobby acoustics, the TVs generally run the same programming. Right now, each TV is sourced from an HD cable box in the back room, each over a long HDMI run.

I would like to add the option of streaming. However, I need to be able to...

Streaming in a Business Environment