I've never been shy about my love of Mister Rogers; there's a new documentary in process, called Mister Rogers & Me, though apparently they need another 10 grand to finish it. If you're so inclined, you might kick in -- I've pasted the link to do so below.
And, if you're still jonesin' for Mister Rogers on film, Paul Germain's Speedy Delivery is out and amazing. Check it out!