A TV antenna may have an amplifier with a control but to my knowledge doesn't have a tuner built in.
Does it have a remote to change channels? What kind of output does it have.
If it's AV then a USB AV capture device would allow the AV output to connect to a PC. You can't do that with HDMI since it is HDCP protected.
It it doesn't have a tuner then you would have to buy an analog tuner too.