Some TVs today still offer analog connections, but the ones I've seen all come with an adapter cable that provides the three necessary connections (red/white which are audio and yellow, which is video). Perhaps your adapter is in a drawer somewhere.
But to make life simple for you just get a DVD player that has an HDMI output. Even better, just get a Blu Ray player, which can play DVDs just as well as BD discs. Odds are you can get a BD player for little more cost than a DVD player with an HDMI connection. Frankly, DVD players are becoming hard to find, as everyone wants a Blu Ray player for HD content.
Dan
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