Smart TV (NE DC near RFK Stadium)

I know this is a big ask, but I'm on my second second-hand television already several years old when I got it about 9 years ago, and I would greatly like to have a smart TV. If you have wanted to upgrade to a 4K or whatever the latest version is, but cannot justify trashing or recycling your older smart TV, know that I will value it and give it a second career. My current TV has a 42" screen. I would prefer one that size up to 48" but will consider others.