Well im sure you have heard it a lot here but Quality>Quantity

You can have a blog with 500 Posts and they are low in quality and get around 40 google hits daily.
You can also have a blog with 1 posts about how to do SEO,etc and get 500 Hits daily from google.

It all depends on the quality. I guess as long as you post the latest releases daily it should be fine. For example on a monday night post all the TV SHOW episodes that aired that day.

Of course you need to build backlinks,etc