Missed the text part.... So I bought my parents a TCL c735 85" but apparently they miss the old shutdown feature of their old Samsung. Note this isn't the sleep timer but rather a function that would shut it off automatically every day at a given time as my dad has a tendency to fall asleep on the couch and not shut off the TV until he wakes up again late at night.
Maybe an ir blaster if you can't find a software fix.