The difference between "the room with the big TV" and "the home theater" is theater language: the marquee, the glow, the sense that the room knows what it is for. Signs do that job. Our picks from the movie and TV show collections — plus the one placement rule that matters.
Put signs on the same wall as the screen or beside it — never on the wall you face through the screen's reflection. A glowing sign behind the viewers becomes a permanent ghost in every dark scene. Above the screen is the classic marquee position; side walls take the poster-style pieces. Dim static colors beat dynamic modes in a viewing room — save the 20-color remote cycling for parties.
Theater walls are big and viewing distances long: this is Giant (24×16") territory for the marquee piece, Big (16×12") for side-wall accents — the reasoning is in our size guide. Since theater signs have permanent homes near outlets, the wall-adapter version usually beats USB (comparison).
Placed per the rule above (screen wall or side walls, dim static color), they read as ambient theater lighting — the same principle as cinema wall sconces, which stay lit through the film.
LED signs stay cool to the touch and add no meaningful heat next to electronics (safety guide).