A great device these days is also a pocket computer designed as an USB stick that can do pretty much the same things as a regular big computer. Such an example is MeeGo Pad T01, device that is now available with Windows 8.1 (with Bing) too, all for a $110 price tag.
Among its specs we have an Intel Atom Z3735F processor with a maximum frequency of 1.8 GHz, an Intel HD Graphics Gen 7 GPU, 2 GB of RAM memory, 32 GB space of internal storage, a microSD card slot up to 64 GB and Wi-Fi connectivity. Also, this device can support an external HDD up to 1 TB.
On the connectivity side we get HDMI port, an USB 2.0 port, a microUSB port, and Bluetooth 4.0. This mini PC weighs jus 50 grams and measures 11 cm in length, 3,9 cm in width and just 1 cm in thickness. Such a device can be easily used for your non-smart TV.