Such is usually part of a cable TV package. A few TVs have limited DVR like features as well. As far as the Roku goes, the versions I see today made no mention of live TV and what you asked.
If you only have the Roku Box or Stick and not the Roku TV, is it possible to rewind, pause, or fast forward local live channels? Or will I have get a PS Vue, or Directv Now or something like that or some sort of device?

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