How many TV's and Devices can we watch Netflix on at the same time?

So we have 5 TV's and smartphones that are Netflix enabled. How many can we watch Netflix movies on at the same time??

That is mainly dependent on how much bandwidth you have with your internet service, each HDTV will require about 1-1.5 mb., smart phones less.

Only 2 at a time if you just have a streaming account. Not sure if you can run more devices simultaneously with a disc rental plan though????