Hi there and welcome
I would recommend 4GB of Ram, and mmake the investment for an i5 processor instead of an i3
Any motherboard that can support this would be fine, and you can use an onboard video card that comes on the motherboard
Streaming the content does not take much computing power, but you do need to ensure you have a good internet connection and I would recommend a minimum internet upspeed of at least 2 Mbps to keep waiting times down.
If you would like any additional information or assistance, please do not hesitate to let me know.
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