Thanks to you all. Mouser does have the part, but I will check out Digikey also.
One correction: Its 22uF, not 2 (my typo). This is a 5 or 6 yr old Samsung 65" LCD, one of the first 4k models, and the capacitor in question is on the power supply board. The TV was taking from 5 to 45 minutes to come on, just flashing the symbols occasionally during boot up. Sometimes it would work fine for several hours, but other times it would drop out and not restart. It has sat about six months since last powered up, and I was going to just junk it, but on a whim, decided to do some research on line and found a lot of info on DIY repair of the caps, a very common problem. So far, I have visually checked all the boards with no discernible discrepancies. I then used an ESR meter to check the aluminum/electrolytic caps (all 33) while they are installed, only coming up with the one that has high resistance (2.4 ohm). None are showing any signs of swelling or leakage, but since it was booting up sometimes, I figure it is a good possibility this weak one could be the culprit. If so, it will be an inexpensive fix. If not, I may pull some more to see if they check more accurately out of the circuit.
In reality, the odds of all this going well are not too high, but even a blind squirrel finds an acorn a time or two. There is much more I don't know about electronics than what I think I know, but taking advantage of the plethora of knowledge now available on the web, I will "endeavor to persevere". The last time I did any circuit board work was on a HAM radio transmitter I built with my Dad from a Heath kit when I was 14 years old (almost 60 years ago). I do have several circuit boards from old outdated computer components on which to brush up my soldering/desoldering skills, and it is a good winter project for when I really don't feel like braving the nasty weather, so I am pressing ahead.