A modern HDTV listed with a 40-inch screen is roughly 3.1 inches thick, 38.7 inches wide and 24.7 inches tall. These televisions weigh about 32 or 33 pounds.
The Samsung 40-inch 1080p LED HDTV measures, without the stand, 3.7 inches deep by 36.1 inches wide by 21 inches high, according to Sears. The Insignia 40-inch LED 1080p HDTV measures 3.3 inches deep by 36.4 inches wide by 21.5 inches high without the stand. The Sony Bravia 40-inch LED 1080p Smart HDTV measures 3.38 inches deep by 36.5 inches wide by 21.88 inches high without the stand, as listed by Best Buy.