You will be able to record all the channels except VOD. You will NOT be able to download recorded videos to a computer over your home network. I'm surprised that your buddy can't at least record one local copy.
If HBO, Showtime or Epix premium channels are in your Spectrum package, there are apps for the Fire TV that let you view essentially all of their VOD, whenever you choose. I use these and they work great.
If HBO, Showtime or Epix premium channels are in your Spectrum package, there are apps for the Fire TV that let you view essentially all of their VOD, whenever you choose. I use these and they work great.