I seem to find a different opinion each place I look.
some say that DVR/Tivo are consistently running so any idle spin down just adds wear and tear on the HDD.
Some say that any down time saves your HDD life
looking to replace a hard drive on a THR-22 and it seems like idle time on the HDD is a 'need to know' when deciding which hard drive to buy.
Main thing I'm looking for is reliability and longevity. I hate losing all my records/SP etc every 2-3 years.
at least the THR-22 seems to format/OS the drive for you so I don't have to worry about that.