i just get 50/25 internet from Optimum. You can get your basic channels with an HD antennae. That didn't work out for me because it's not always reliable especially on ground floor units, which way it faces, topography, etc...
However get yourself a nice Roku box. You can use it just to stream media from your pc if you don't want to pay to use services like Hulu or Netflix. You can also use it to rent movies from a bunch of services from Amazon and like 7 others. New DVD releases in HD from .ike $2.99-$5.99. Also if the HD antennae does not work for you, there is a service called Aereo that works on Roku. It's 8 bucks a month it gives you all your local HD channels plus a bunch more and you can pause tv and it comes with 20 hours of DVR in the cloud.
That's what I've done the last 3 months and it's just fine.