There is no rationale it must be this way, and on Sky and Virgin's streaming platforms the tickers (and Stay Activity) are wholly good, but some expert services like Samsung Tv set Plus, Pluto and Rakuten only use 25fps in place of 50fps, triggering noticeable judder. one I feel ITVX https://damientqpkb.blogocial.com/jav-hd-for-dummies-70469465