The 55PFL5901 supports a 2160p video mode which is better than most comparable spec TVs that have been on the market for the last year. Most televisions that were released around the same time as it support a 720i video mode. In addition, this Philips television support 480i, 480p, 720p and 1080i and 1080p video modes.
A 2160p video mode is actually the best supported video mode across all new TVs.
A 1280p video mode is the worst supported video mode amongst similar types of television.