I'm looking to buy a DVD player,

now it states in my TV manual that I should use the composite inputs, but disable progressive scan as the telly does it itself. (deinterlaces the image and makes it progressive scan itself)

"better then your dvd player"

what the fook do they know what type of dvd player i'm buying, i don't even know wich one yet myself.

Is this bullshit ? Is it a good or bad thing the telly does it itself and that you can't disable it on the telly, so you have to disable it on the dvd player ?
It does this on all inputs, even when watching normal cable, that difference is stunning, even my mom could see it.