Polaroid Smart T.V.?

So I got this t.v. on Christmas, and i'm really trying to appreciate it but for the life of me can't figure out how to set it up. The remote it came with doesn't even change the channel it just automatically changes the input when I hit channel button. Anyway, my questions are...what are the red, green, yellow, and blue buttons on the remote? I looked at the paper it came with and it didn't say. They do nothing when I press them. Also, can I get Hulu on this t.v. or is it limited to what it came with? And how do I set up my remote to do more or is this it?