I think the UKP demographic contains quite a few people who struggle to hear everything clearly on TV these days.
That'll be partly down to falling technical standards, but mainly because they're a bit older and have varying degrees of hearing loss, which affects hearing higher frequencies, the ones which convey intelligibility.
I suspect you're a bit younger than many, and with good hearing
.
My own hearing started to deteriorate 25 years ago. I first tried an expensive specially made hearing aid, and when that fell apart a couple of years later tried everything the NHS could provide, but nothing could solve my problem. Oddly, I was perfectly able to hear and enjoy music, but it was impossible for me to distinguish any form of speech it was just a jumbled noise - and I gradually began to rely on lip reading. Now I can hear and understand any normal speech provided I can see the speaker`s mouth.
The advent of masks has now rendered me virtually stone deaf again; whether in shops, offices, hospital Outpatients, or even when I`m fishing, if anyone speaks to me I have to ask them to remove their mask before I can understand them.
As to wearing one myself - they are a bind; I have to cough heavily at very frequent intervals, and after each cough I have to get rid of a mouthful of mucus and to do either I have to remove the mask,
At the risk of appearing unsociable I have simply found it less trouble to avoid close proximity to other people for this reason.