Me too, and I remember in the mid 2000's before flat screens took off the biggest CRT you could get was 36", or there may have been a 40" but it was ultra expensive. One thing though is that the wider aspect ratio of modern tvs inflates the size number if you were to watch 3:4 aspect shows on a modern tv you are losing a bunch of viewing area on the sides.
Regardless, modern tvs are indeed insanely huge, and I'm loving it.
How old are they? We bought an LG TV 1 or 2 years ago and it has a lot of online features and keeps prompting me to make an account and accept various terms and conditions for their advertising or to let them listen to the microphone and such. I think it's mostly optional but they don't make it easy to opt out