This little box was designed as a front end for Netflix, and all other channels are there as a bonus, hence the big Netflix button.
You DO Need a computer to set this up. there is an important point, where you have to sign up for a Roku account and input your credit-card details , so for Roku to state , no computer required, is just wrong.
I think this is a great gizmo, avoid players that give you 1080p from web content, as its hard to find and slow to download, 720p is fine.
There are limited channels available here in the uk and no "you tube", which is a shame, however, if you want to see some internet video on your TV, Including BBC Iplayer, for the money this fits the bill, with a bit of luck they may add the other on demand TV channels here in the uk.