I'm a bit of a luddite when it comes to AV equipment. I don't spend a lot of time in front of the TV, and the idea of investing in a smart TV is distasteful. I don't have cable, though, so when I do watch something I'm streaming from one of a half dozen services. Chromecast was the perfect answer for me. For only $30, I can stream from Netflix, Amazon, Youtube, Hulu, etc to my old school TV.
I'm even more in love with my Chromecast Audio, which I use to stream Spotify to speakers in a few different rooms of the house. My kids and I use this constantly. Sadly, though, they discontinued the product, so I can't recommend it anymore.