i have netflix and amazon, and occasionally watch Hulu for a missed TV program
forget using the PC for surfing while streaming a movie
you need a constant data stream for the movie
trying to do other things will be a competition for bandwidth and data , a conflict of interests
in order to view streaming from the PC and surf
also you will have to set the TV as an external 2nd monitor that is an extension of the desk top, NOT a mirror of the desk top two displays, other wise only ONE thing will show on both at the same time
you need an external media player for the TV, connected via personal network to the internet
but you will still have the competition for bandwidth
few IF any mobile services can provide any simultaneous dual use , unless you want LOW quality video
i don't surf while i'm watching a movie, it just doesn't work well