Would it be something this, shown against a business card, connected to our living room TV? :
This is a full Windows 10 PC, however, the specs the one we have are very basic, i.e. Atom CPU, 2GB RAM and 32GB storage. This cost £50 (about $65) on an Amazon lightning deal at the time (May 2016) and I wasn't sure how we would get on with having a "PC channel" on the TV. However, when I saw the lightning deal, it became an impulse purchase. My parents barely used the Android TV stick we had before it, however, this Windows stick has been a success and in constant use for streaming. It barely uses any power (powered with a USB cable), so we leave it running 24/7.
With this running Windows 10, it is as functional as an entry level Atom powered Windows 10 laptop. While I wouldn't try any type of photo editing on it, it has no problem streaming up to 1080p and can run desktop applications such as Word, Excel, etc. It does however struggle with multimedia heavy websites, but we generally don't use it for web browsing other than to head to a website like the BBC, NBC, etc. (with a VPN) to stream shows. There are higher end sticks also, for example, Intel has similar size stick with a Core i5 CPU, 128GB SSD, 4GB RAM, etc. Whenever we decide to upgrade ours, I'll certainly get something more capable, seeing how much use we got out of ours.