will refurbed (tivo-renewed) roamios have new HDs?

Hi,

I just ordered a refurb (tivo-renewed) base Roamio from their summer sale and it's delivering tomorrow.

Tivo's website doesn't have any documentation on what their refurbishment entails so I'm asking here:
What are the chances that their refurbished units have new hard drives? Or are they using refurbished drives from the manufacturer (WD or Seagate)?
Should I swap in a brand new HD just to be sure?


Thanks!