dvd black and white on plasma

I have an old "Olympus Camedia" digital camera (D-535 Zoom. 3.2 MP). I took coloured photos and tried to view them on my widescreen plasma Panasonic tv and all of the photos are black and white. I'm thinking this is happening because the camera is old and the tv is new, but I don't know anything about this sort thing so, can someone please help me? Thanks- please no ...