You can stream over-the-air channels on Roku from a HDHomeRun tuner.
But the HDHomeRun app has been in beta since its release in 2019.
Uncommon Knowledge
Can any Smart TV use HDHomeRun?
With a HDHomeRun tuner, you can add free over-the-air channels to Smart TVs by LG, Sony, and TVs supported by Roku, Android TV and Google TV.
How many channels can a “100 mile TV antenna” get?
A number of companies and online reviews claim that a TV antenna can receive signals from 100 miles away or more.
How to record channels from a TV antenna without a subscription
There are a few over-the-air DVRs that operate without a subscription for guide data. Not everyone wants to pay a monthly or annual fee.
Can a Digital TV antenna signal be broadcast over WiFi?
Plugging a TV antenna into your TV is the most efficient OTA setup. But there is a way to broadcast channels across your home WiFi network.