The BuzzTV X5 has hard drive internal storage.
I was watching soccer on my NVidia Shield which has a connected USB stick of high quality and high capacity.
It's interesting, I continued watching the soccer game without recording and the program later froze.
I'm going to try an IPTV subscription for 2 devices.
Probably, I can't be advised of the best IPTV providers. I think I have a good one now, but ???