not really, alll the TVs in stores are now smart. It's easier in computer stores, looking for a big monitor instead of a (formal) TV. I got mine used, which is still more possible than encountering one in a store...

I wish we did something similar. 

Are they easy to find?

SwapMarket

I went out of my way to get a "dumb" TV that just takes the signal from my computer to play what I tell it to, and that's it. Glorified large monitor.