The antenna is connected to the TV, whether it's a Roku TV or not. It's just a matter of switching the TV settings between antenna mode and Roku mode.
On a non-Roku TV, you'd use the TV's remote two switch between the antenna setting and the setting for the HDMI port to which the Roku is connected. Look for a button on the TV remote labeled "input", "source", or something similar.
Doug Roku Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Roku Streaming Stick 3600
Roku Community Streaming Expert I am not a Roku employee, just a user like you.
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