yup at 3m by 3m for the room....a 60 inch tv sounds more workable, less noise, heat, more flexible w.r.t light, similar price when you consider bulbs over 10 yrs....Tbh, a 50-55" TV on a wall mount would be more than sufficient; and wouldn't need to be ceiling mounted. There'd be very little heat generated either. The only issue would be no VGA on typical TVS. Solve that with a VGA to HDMI convertor.