https://www.metv.com/stories/andy-griffith-knew-that-matlock-was-special-before-the-first-episode-had-even-aired

It began with one man and a simple dream.

What separated Ben Matlock from Perry Mason, according to Matlock series creator Dean Hargrove (https://www.metv.com/stories/what-separates-ben-matlock-from-perry-mason-according-to-matlock-series-creator-dean-hargrove)

"Matlock is entirely different, to our way of thinking," said Hargrove.