Yes, I'm an Amish guy who just bought a WiiU.
I know it sounds stupid, but I bought the TV like 4 years ago and at the time, I was pretty much at Amish-level knowledge when I went out and bought it, not paying attention to the resolution. Our old tube-style TV broke and I just needed to replace it.
So, as I've only had a Wii and a DVD player hooked up to it ever since, when I turned either of those devices on, "480p" would pop up in the corner. I assumed that was all it was capable of.