The Curtis PLDED3996A supports a 480i video mode which is better than most TVs of this age and spec. Most similar spec TVs that were released more than two years ago support a 1080p video mode. In addition, this Curtis TV support 1080i, 480p, 576i and 576p and 720p video modes.
A 480i video mode is actually the worst supported video mode across all TVs that are a comparable age to the PLDED3996A.
Across comparable types of TV the best supported video mode is 2160p.