The Toshiba 40L3451 supports a 2160p video mode which is better than most TVs that are a similar age to it. Most similar spec televisions that have been around for around the same time as it support a 1080p video mode. In addition, this TV support 1080i, 480i, 480p, 576i, 576p and 720i and 720p video modes.
This television's video mode (2160p) is in fact the best supported video mode amongst all televisions that are a similar age to the 40L3451.
The worst supported video mode amongst similar types of television is 480p.