No you're on the wrong track. I'll break it down.
JL can describe the TV however he likes. He can say that in his opinion the TV was amazing. The best he'd ever seen. Most likely expensive,the kind a wealthy person would buy.
There is nothing wrong with that.
The jury now think that this TV was a little bit fancy.
There is something wrong with that.
The State now have an obligation to stop the jury thinking that otherwise they have allowed the jury to be misled.
I’m not an attorney so rather than responding to something I admit is not my area of expertise, I fed the below detailed prompt into ChatGPT and by the response I got it seems can be argued either way. I would love to hear legal experts debate this from both sides.
Here was my detailed prompt to ChatGPT (thank you to @Elisaa444 for researching Jeff’s testimony in Charlie and Donna’s trial):
In the Dan Markel case, the State’s star witness, Jeff Lacasee, testified in Charlie Adelson’s trial that Wendi’s TV was ‘like something you’d see in college doom room’. The impression he left was it wasn’t a large TV – he even said “it wasn’t like an 80” TV’. His testimony led the jury and everyone on social media to believe the TV was a small cheap TV. This is important because the TV was a central object in the State’s case in several contexts. The State’s theory is that the TV was used as a ‘code’ word between Donna and Charlie on several wiretapped phone calls. Also, the TV warranty repair was scheduled the morning of the hit and the States theory is that the repair was set up as Wendi’s alibi. It was also the central object in Charlie's hitman joke. Jeff testified that Wendi told him the hitman story a few days before the murder. Per Jeff, Charlie had told Wendi that Charlie had looked into at options to take care of the Dan problem including hiring a hitman. Wendi actually told Det Isom that Charlie always joked about the TV by saying ~ ‘I looked into hiring a hitman as a divorce present for you to take care of Dan, but I bought you this TV instead because it was cheaper”. In Donna Adelson’s trial, on the cross-examination of Wendi Adelson, the defense had Wendi read off information from the BestBuy warranty repair ticket and we learned the TV was 55 inches.
Question – Did the state have any obligation to correct Jeff’s testimony that the ‘TV was like something you’d see in a college dorm room”. Objectively the size of the TV is very important to the case and it could be argued that Jeff purposely minimized the size by framing it as “something you’d see in a college dorm room’.
ChatGPT unedited response:
Short answer:
only under certain conditions. The prosecution doesn’t have a general duty to correct every arguably misleading characterization a witness makes—but it
does have a constitutional obligation to act if testimony is
false or materially misleading in a way that affects the fairness of the trial.
Here’s how that breaks down in your scenario:
1) The governing legal rule
Under cases like
Napue v. Illinois and
Giglio v. United States, the State must:
Not knowingly present false testimony, and
Correct it if they know it’s false,
When it’s material (i.e., could affect the jury’s judgment).
This includes not just outright lies, but also
testimony that creates a false impression.
2) Was Jeff Lacasse’s statement “false” or just subjective?
This is the key issue.
A
55-inch TV is objectively mid-to-large, but:

Courts are generally reluctant to treat
vague descriptions as “false testimony” requiring correction.
3) Did the State
Even if the statement is arguably misleading, the duty to correct only arises if prosecutors:
Unless there’s evidence the State:
Knew the exact size (e.g., from records like the Best Buy ticket), and
Recognized Lacasse’s description would materially mislead the jury
…it’s unlikely a court would find a violation.
4) Materiality: did it really matter?
This is where your argument has the most weight.
You’re right that the TV played a
central role in multiple parts of the State’s theory:
Alleged code word in wiretaps
The repair appointment/alibi
The “hitman joke” narrative
So you could argue:
However, a court would likely ask:
Did the exact size meaningfully affect guilt?
Or was the significance of the TV about timing, communication, and behavior, not its specs?
Most courts would probably view the size as
collateral rather than core evidence.
5) Defense responsibility
This is important:
Courts often say:
If the issue could be exposed through cross-examination, it’s not a due process violation.
6) Bottom line
7) But your concern isn’t trivial
Even if it doesn’t rise to a legal violation, your instinct points to a real issue:
That’s less a due process violation and more a
credibility and advocacy issue—the kind juries are expected to sort out, ideally with strong cross-examination.