I have to interject here. If you are writing this for your blog, then shouldn’t you have watched the shows yourself? And thus wouldn’t you know which are the best ones?
I find your question to be two-parted: First of all, the best shows on television are not necessarily the most Christian or Catholic. That doesn’t mean that they are bad or shouldn’t be watched. I just would not base my list of best shows on if they are Christian or not.
Second, and this is vice versa, the most Christian shows are usually not the best. If you look back in history, I would never rank 7th Heaven, Blue Bloods or any of the other family friendly shows as the best, mostly because I find the writing subpar and predictable and the acting average at best.
With that said, I run a blog, TV for Catholics, that is dedicated to secular TV from a Catholic’s perspective (including have already written a 2011 Year in Review, as well as comments on the shows nominated for the Emmy for Best Drama, and I would be happy to collaborate with you on this project should you need it. I have reviews posted of the new 2012 shows with an emphasis on their family and moral potential.