Ustvnow.com provides ABC, CBS, CW, FOX, NBC, PBS live streaming access for free for 45 days.
During/after that "test period" if you're happy you can subscribe for 20-40 dollars a month depending if you want DVR capability.
With the paid plan you get ABC, CBS, CW, FOX, NBC, PBS, My9, A&E, Animal Planet, Bravo, Cartoon Network, CNBC, CNN, Comedy Central, Discovery Channel, ESPN, FX, Fox News, History, Lifetime, National Geographic, Nickelodeon, Spike, Syfy, TBS, TNT, USA.
I've been using it for months and the streaming works well. I also have apps on my iPhone and roku box that allow me to watch away from the computer.
Initial sign up is just email and stating that you reside and will use the service only from outside the USA.