Subject about says it. Wondering have other 976 Owner encountered this occasional quirk.

1. While adjusting channel Trim for a 5 ch system, the noise jumps, occasionally from RS to LF though the display says LS

Normally, moving through the OSD trim menu: LF; CC; RF; RS; (skips the unused RB & LB to) LS; Sub. Pushing the advance button loops around to LF.

2. My TV goes blank if I leave the OSD on this screen for more than a minute OT two. Advancing the Trim to the next channel doesn’t restore it. Pressing the TV’s power button restores the image as I left it. This is consistent.

Merry Christmas