Just to clear up a couple of things mentioned in two other reviews here, one from 2008, the other from 2012. (I'm writing this in 2024.) Both actors Will Wright and Rance Howard (Ron's father) are credited for this episode and both do indeed appear.
As pointed out in the 2012 review (correcting the 2008 review) Will Wright plays the part of the misery renter of mens suits, Mr. Johnson. This is a lengthy segment. "Lengthy" in comparison to Rance Howard's appearance.
Rance has one of those, "Blink and You'll Miss Him" moments. That moment comes at the 23:41 mark. He plays a member of the TV crew. He even speaks two lines! "That's it. Okay, wrap it up, fellas." (Speaking those two lines would have made him some good money as opposed to the non-speaking crew member roles, like the camera operators.)
As for reviewing the episode itself? To be honest, this is the one and only episode of The Danny Thomas Show I've ever watched. Obviously, for the fact that it is the pilot for what will be The Andy Griffith Show.
I regard TAGS as one of the absolute best shows to have ever graced a television screen. Right up there with The Dick Van Dyke Show, Columbo and Doctor Who. All incredibly wonderful 10/10 shows, imo. As the pilot episode of TAGS, this is a "must-see", 10/10 episode in it's own.
By the way, there's another "Blink and You'll Miss It" moment. During Danny and Andy's conversation outside, you might spot that just like in the TAGS series itself, there is a Barbershop right next door to the Jail/Courthouse building. However, there's no Floyd present.