For dullards like me to whom this is not obvious, by “screws at the bottom” @Beoaddict means “at the bottom edge of the rear panel,” and “flip over” means “…so it is resting on its rear panel on your floor/bed/…” The service manual instead assumes you have a service stand holding the TV upright, so you would be sliding the front glass/frame assembly up vertically. (I’m pretty sure it was available here, to gold members? Anyway, it’s board-level service only.) Here are the screw locations.
