I know I can’t pull the tubes and walk down to the corner hardware store - you know, the one that has the tube tester tucked back in the corner? I’m guessing that if there is no sign of power, it goes to the curb (or to the recycler).
I have tried it in different outlets. I’ve pressed the power button several times, even holding it in for 10 seconds. The remote does nothing. That has been the extent of my troubleshooting.
There is nothing else to try, correct?
mmm
Last ditch attempt: any chance it’s the cord? Can you acquire another cord for testing purposes?
You could see if the power supply board is replaceable and try replacing that. LCD tvs are so cheap now though, it’s probably not worth it.
ETA: Make sure the cord is fully seated on the tv side.
Did you do the 10+ second long press while the TV was unplugged? The troubleshooting steps I found for one of my flat screens a few years back said it needs to be unplugged when you do this to discharge any remaining charge. Then wait a minute or two and plug back in a see if it powers on. Worked for me a couple of TV’s ago when I had the same issue.
Our “smart” TV actually advises to unplug the device, wait 5 minutes then plug it back in. There’s a screen that really says it! Next there’ll be a screen telling you to whack it on the side. 
Folly, you’re a man after my own heart – I believe The Guy Code dictates one serious repair try before tossing “busted” devices. 
And cheaply made? Wish I had a nickel for every cold solder joint I’ve encountered – remotes are particularly bad.
Sadly, I concur.
You didn’t say how old it was or where you bought it. I had a Samsung sound bar I purchased from Costco that died three years after purchasing it. I brought it back, and they gave me a full refund, no questions asked. I luckily kept the receipt. However, if your TV is ten years old or older, you’re probably out of luck.
This was my thought. My LCD monitor seemed like it was giving up the ghost tonight, but, as a last ditch effort, I tried replacing the cord, and it seems to have fixed the problem.
Of course, my monitor’s cord is separate. I’m not sure if that’s the case for LCD TVs, so that might make it harder toe check.
BTW, I also had an air-conditioner die earlier this year and it turned out to be the cord as well. Repaired it for $20, but then got to keep $400 due to it being under warranty.
!!Score!!
Of course, you realize you used up your good luck supply for the next twenty years.
It actually is a Samsung, and I did get it at Costco. It’s about 5 years old.
Maybe I’ll try the 10-second button push, unplugged version, but that’s about as far as I’m willing to go at this point. The set has already been replaced, and I was taken aback by how cheap they are these days.
mmm
Perfect excuse to go out and buy an OLED TV
I’ve been able to revive a couple by replacing the electrolytics on the power supply board in one case and replacing some burned out LEDs in another.