Why do you require a subscription?
We're focusing on filtering TV shows right now. If you watch about one season of a TV show per month, a $5.99 monthly membership actually saves you between $2 and $6 per month over a $1/movie pay-per-view model.
We're also trying to filter as many shows as fast as possible. A subscription model allows to invest more time and money into filtering shows for your viewing pleasure.
Lastly, in order to accept payments on the Internet, it costs 30 cents plus 3% of the order value. So if we charge one monthly payment instead of 8-14 small payments, it saves us money, which we then invest into - you guessed it - filtering more shows.