Apple TV
My Apple TV is constantly stopping to buffer. It is unable to play for more than four or five minutes before I get the pinwheel. This happens across all my apps (Hulu, Disney+, Netflix and (possibly) Amazon Prime Video. It seems that this is a longstanding and fairly common, highly frustrating issue. There does not seem to be any clear cut solution besides various degrees of "reset," or checking internet speeds. Meanwhile, I hear my Roku going nonstop in the other room without pause. It never fails. Ever.
Apple TV