The 55PFL5901 supports a better video mode than most latest similar spec TVs. This Philips television supports a 2160p video mode, whereas most latest TVs support a 720i video mode. This television also support 480i, 480p, 720p and 1080i and 1080p video modes.
A 2160p video mode is in fact the best supported video mode amongst all similar spec TVs that came out around the same time as the 55PFL5901.
A 1280p video mode is the worst supported video mode amongst comparable types of TV.