@Brian Persaud There is no right or wrong answer with how much you should be blogging.
Like everyone has said you should make sure that when you do write a post make sure that it has substance. If you are writing everyday but the post comes across as hollow in nature there is little value for people.
Write when you have something to say, but aim to find something concrete to talk about once a week. You want to make sure you offer fresh content for people to keep coming back for. Once a week seems to be the answer most people jump to right away when you bring up starting a blog.
I'd recommend using something like Evernote (
http://www.evernote.com) to save stories, posts, emails, news articles, tweets, etc. that you might want to write about. Therefore you can start to build up research sources. Amazingly enough when you do this, the stories seem to find themselves.
I've done it this way with two blogs in the past with different subject matters and the most critical things is planning and putting aside time to actually construct and write the blog post. At the beginning this is more time consuming then you anticipate.
Have you thought about doing a mix of video blog posts and written blog posts since you already have experience in television?
ROI is kind of hard to measure with blogging in my opinion, I'll let
@Ian Gordon expand more if it's required, he seems to have a bigger and better grasp on that subject matter.
