So maybe your parents are complaining about "that new television thing that means my old TV won't work any more". Maybe they're behaving as if nothing like this has ever happened before. Well, if they're old enough, they should be able to remember going through the horrors of technological advancement before. If they're REALLY old enough, they may have trouble remembering things in general. P.A.G. has reported in the past about the early days of color television and how people were worried their TVs would explode or cease to exist or whatever. That also happened in 1949 when UHF broadcast frequencies promised to bring a new world of reruns and cartoons into your home (eventually). Thankfully, Zenith was ready.
The benefit of broadening the frequency spectrum of television broadcasts opened up room for more channels, which people probably wanted. It wouldn't be necessity keep old TVs from working, but in order to get the new UHF channels on your old VHF, you'd have to buy a converter. Sound familiar?
All of this stuff is tricky for my giant future-brain to understand. Pity the poor troglodytes of 1949 trying to grasp the reason their old TV won't get the new channels.
What I recall of my kidhood was that, for some reason the shitty black and white TV in the kitchen got the UHF channels better than channels 2 and 5. This was fine with me, because UHF was home to channels 32 and 44. Ch. 32 later became Field Communications and even later, FOX. Channel 44 went "en espanol" some time in the early eighties I think. But before that happened, Channel 32 was where you could go to catch Popeye, Woody Woodpecker and Tom & Jerry on Super Cartoon Sunrise, and the various horrible Hanna Barbera shows in the afternoon. UHF was where I saw my first Anime, in the form of Speed Racer (original name: Mach Go Go Go), Battle of the Planets (original name: Science Ninja Team Gatchaman), Space Giants (original name: Ambassador Magma) and Ultraman (original name: Urutoraman). Also, channel 44 ran the reliably freaky Spider-Man cartoon, as animated by the reliably stoned Ralph Bakshi.
Now these shows are available in various easily accessed forms like DVD and YouTube, which is better I guess. I'd like to buy a DVD of these shows with atmospheric interference and static in the picture. Better still, I can just get the DVDs and watch them through a horrible old TV. Hmm. Food for thought.