this just sent me down a nostalgia rabbithole.
in the late 90s and early 2000s my grandparents had two interesting Televisions in the house, one was a very large CRT TV that they kept using until the late 2000s or early 2010s. but the other was an ENORMOUS flatscreen that was so big it looked like a CRT on the back, I dont even know what kind of technology it was, Im assuming it wasn't a CRT though if this one here in this video is the largest, because the one they had was 2-3 times its size horizontally. (they had it in the late 90s, Im g oing to assume it was an early version of a plasma but im not sure really)
its probbly the rear projection. it looked like this, but my memory tells me it was quite a bit bigger https://i.redd.it/ig6k6bngyaca1.jpg
edit - its actually probably that same model i linked or a bigger version of the same line, its an RCA, I know they had a lot of those throughout the years, my grandfather ran a furinture, electronics, appliance and computer store in the early 2000s and the house was always full of Panasonic, RCA, and "Zenith" electronics. As well as the occasional thing from the more well known brands like Hitachi, Toshiba, and Sony.
but Zenith and RCA were dominant there
double edit - it appears RCA went defunct before I was even born, so if it was an RCA it would have been something he bought used, or had kicking around from before I was born.