One of the big problems with DTT USB sticks and Macs is the absence of compatible drivers and programs, something that is superfluous in Windows and even in Linux (for example Avermedia passes from Mac), but we can partially solve it with The Tube.
This program created by Equinux adds compatibility with many tuners and manufacturers to try to be the definitive television application on your Mac in this way, although I have to admit that a DTT USB that I have around here (bought on eBay, of the 10 euros) has not been able to recognize it.
The program is paid and the license costs 30 euros, so you better try the demo before doing anything.
Source | applesphere
Learn more | equinux