​​​​​​​Roku​​​​​​​​​​ is my personal choice for getting access to Netflix. The basic model costs only $49 and is ​​extremely easy to set up. It connects wirelessly to the Internet from my cable modem/router. I really like ​​that the remote has something like only 6 buttons on it which are totally intuitive to use.​
​If you are looking for the quickest, cheapest way to just get Netflix “Watch Instantly” going ​​​​​​​​​​Roku​​​​​​​​​​ is your ​​choice. I added an ​​​​​​​​​​outdoor antenna​​​​​​​​​​ for live content but another option would be the built-in ​​​​​​​​​​Hulu Plus​​​​​​​​​​.​