If you want to create a reliable video streaming service, you'll probably want to go with a UDP approach. TCP will throw an exception as soon as a packet drops. That being said..... Node.js is ultimately a bad choice. Way too high-level. I've found, when working with UDP, it's much more performant on lower level languages like C, etc. As far as my recommendation, if you want to go with something 'new' and fun, check out GoLang. It's low level, and developed to handle high performance at scale.