Can I hook a old tv up with only yellow and white to a dvd player

Solution
If you get a DVD player with AV outputs then yes. Most will only have HDMI but the ones at the very lowest price range will have RCA outputs. There will be two for audio. Use one of them.
Blue Ray players will only have HDMI outputs so you would need to get an HDMI to AV adapter.
If you get a DVD player with AV outputs then yes. Most will only have HDMI but the ones at the very lowest price range will have RCA outputs. There will be two for audio. Use one of them.
Blue Ray players will only have HDMI outputs so you would need to get an HDMI to AV adapter.
 
Solution
^ you can't , they're component inputs not composite.

Doe a that TV have a scart (euro) socket??

SCART.GIF