The 40L3453 supports a 2160p supported video modes which is better than most TVs that have been available for a similar time to it. Most mid-size TVs that were released around the same time as it support a 1080p supported video modes. In addition, this Toshiba TV support 1080i, 480p, 540p, 576p and 720i and 720p supported video modess.
This television's video mode (2160p) is in fact the best supported video mode across all TVs that are a comparable age to the 40L3453.
A 480p supported video modes is the worst supported video mode amongst similar types of television.