Never watched Beretta but I've seen a few Rockford files. What is so corny? Keep in mind that dramatizations on TV as well as movies are based public perception of reality, not reality itself. For example, I saw in an episode of Rockford files, two men, I suppose were cops standing in from a speeding car coming toward them as they fired into the car and at last minute they do a swan dive one to left side and one to right side of the car. If was well choregraphed scene and worked back in the 70's but not today, because we know cops would never do that. In the 40's and 50's what people knew about the old west came from movie westerns. People actually believed that gunfighter duels were common. When in reality, there have been only a couple of such duels ever recorded. Typically gunfighters would shoot their targets in the back or if close enough, knife them to save bullets. Wyatt Earp was once asked, "What is the best way to shot a man?" He replied, "In the back of course. It's safer."
To me this is a wonderfully thing about watching old movies. They don't showed you reality but reality in the eyes of the audience. History books will tell how things actually happed. Old movies tell you how people think they happened.