When using an antenna or connecting cable TV without a set-top box, add a 16GB USB flash drive to your Roku TV™ system and pause live digital broadcast television for up to 90 minutes using Live TV Pause. If you forget to pause and miss an important scene, Roku Live TV Pause allows you to rewind and catch up.
- Note: Roku Live TV Pause is only available when watching "over-the-air" broadcast TV from the Live TV input. It is not available when watching live streaming TV from The Roku Channel.
How does Live TV Pause work?
Live TV Pause is only available on the Live TV input of your Roku TV system. A dedicated USB 2.0 compatible flash drive with at least 16GB of storage is required for your Roku device to record live TV. As soon as you tune to a digital channel, Live TV Pause begins recording up to 90 minutes of live television.
To pause the program, press Play/Pause 
on your Roku remote. Even if you do not pause live TV, you can press Rewind 
at any time to rewind the current channel up to 90 minutes, or to the point where you first tuned to that channel. When you tune to another channel, leave the Live TV input, or power off the TV, the place where you paused the program will be lost.
After being paused for 90 minutes, playback begins automatically.