Continuity: After the discovery of Jarrett’s body, Perry and Lt. Tragg have a discussion outside the garage. Watch Lt. Tragg’s finger. He gently touches or prods Perry on the lapel. Tragg is then clearly seen crossing his arms. Immediately afterwards, Tragg is seen with his finger still on Perry’s lapel.

The Land map of Thompson‘s is folded differently before and after it is seen put in the safe.

Murder defendant Harry Thompson is played by Bert Convy, making his only appearance on Perry. Bert Convy is best known as a game show host, hosting Tattletales on CBS from 1974 to 1978, winning a daytime Emmy for best game show host in 1977. Sadly, Bert Convy passed away much too early. He died in 1991 at the age of 57 of brain cancer. Submitted by PaulDrake 33.
+The lovely Myrna Fahey, who played Lydia Logan, died of cancer at age forty. Added by vgy7ujm

The combination to Adam Thompson’s safe is 80-20-80, seen early in the show. Submitted by PaulDrake 33.
+When Harry was turning the dial at the safe he couldn't have been using the combination shown above (R80-L20-R80) because he was moving the dial too far each time. Added by H. Mason 10/29/14

After the firing of William Talman, there were many Assistant D.A.’s and Deputy D.A.’s tried out. In this show Robert Gist is introduced as Deputy D.A. Claude Drumm. In 1954 Robert Gist wed Agnes Morehead. At the time he was 29 and she was 54. Apparently Robert Gist was just not up Hamilton Burger standards since he only lasted this one show. Submitted by PaulDrake 33.

Claude Drumm may be the most colorless character in the series - not surprised this is his only appearance. DOD 09/04/19
>In defense (of the prosecution) tho I can't disagree with your assessment. I would submit that he was, nevertheless, the most realistic: court proceedings are, as a rule, insomnia-curing affairs and the constant theatrics of...well, practically everyone involved isn't how things really work. Notcom, 030123.

Tragg testifies that the check made out to Harry Thompson from Norman Durston is for $10,000. A closeup of the check in Tragg's hand clearly shows 75000 printed on it. DPJ 1/2/2021.

Sightings: The Thin Man plays the crime scene photographer. In court, we find the Distinguished Lady #4 in the back row. The Little Old Lady in a Hat, Cute Young Lady, and Distinguished Lady #2 are all in the second row. After lunch, Miss Carmody and the Quiet Old Man #1 join the proceedings. Submitted by Bill767, 10/31/15.
We don't see her for long, but our Cute Young Lady shows off a sharp new hairdo for this trial. JohnK, 1 October 2021

+ Read more about these and other recurring courtroom spectators here in this wiki. Submitted by catyron, February 9th, 2021.

CARS. (1) Perry's black 1959 Ford Fairlane 500 Galaxie Skyliner, Lic# RTS 277, top down;

Added by Gary Woloski, 7 July, 2012.

Syndication cuts: Scene with police investigating the murder, Mason and Tragg's conversation; a cut between Mason asking Harry if he had a girl and asking Della if Paul's been in; Part of Ellen Foster's testimony concerning a parcel of land, Durston, J & L Construction and putting the map in the safe; scene in Mason's office during court break. Submitted by Wiseguy70005, 8/16/12.

Costumes: For the first 27 minutes of this episode, Perry wears his usual button-down collars; note that when he arrives to work at 22:30 he wears an uncharacteristic striped shirt. But in court at 27:11 and for the rest of the episode, Perry wears the rounded club collar, and now he adds a collar bar - fastened a little too tightly to look comfortable. Submitted by 10yearoldfan, 22 Sept 2012.

Myrna Fahey reportedly dated Joe DiMaggio in 1964. A mental patient sent her threats because he didn't want Joe to be seen with anyone other than Marilyn Monroe, who had passed in 1962...MikeM. 8/4/2016

This is the first of four PM appearances for Linda Leighton...MikeM. 11/10/2016

Della pours coffee for Perry and Paul --- who both promptly leave before even taking sips --- from the Atomic Glass Carafe. jfh 22Aug2018.

When Paul and Perry are sleuthing for the Philadelphia businessman at the suburban house, at about 14 minutes on the DVD, Paul sniffs the air and says "Carbon Monoxide!" Surely he means car exhaust, because carbon monoxide is odorless (that's why it's so deadly).Submitted by JohnK, 27 January 2019

1221 A Street, Philadelphia, PA doesn't exist. At least in 2019. "A" street is valid but the house/business number doesn't exist. Kilo 11/23/2019.