Dont use Hola. It sells your bandwidth to botnets. Look up how to set up an IPv6 tunnel and register for one at Hurricane Electric in the USA. I have it set up on my router and all devices in my home get US netflix automatically with zero issues.
Wilco people use a VPN for Netflix as UK Netflix is shit. It has barely anything compared to American Netflix. I personally use a VPN as i find America has a lot better shows on there Netflix than we get currently.
For me i did it for the 100 , Arrow , Flash , and lots of american shows.
Would love to give a list but i am not on my PC im in town with some mates. Best things you can do is check online. Would strongly reccomend a VPN if you are bored of UK shows , as most new / recent shows are on American Netflix , when UK has to wait around a year or two.