Nothing to worry. Please enjoy watching plasma and wishing you more years of happy watching.Oops. Time for me to worry, as mine has also completed 7 years. Still running fine though.
I've used it exclusively for watching BDs or rips for the first 5 odd years and also started watching OTT platforms since 2019.
This TV has never ever been used for watching cable TV, so burn in was never on the cards.
Lets see how long it lasts .............
I really miss my plasma.