I have this feature on a low end JVC tv in our guest bedroom that is prone to screen ghosting (this forum won't let me call it b*urn-in, how weird!). It's nice to use when playing a music channel, and helps avoid ghosting for the static visual displays on some of them.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X