HD-Ready Question

Not exactly sure where to post this, so I hope this is the right spot...

OK. I'm about to buy an Olevia 23" TV (I know it's small, but it's all I can afford ) The set says HD-Ready on Olevia's website although it's listed as HDTV on the sites it's sold at. From what I've read about HD-Ready, it seems that as long as I'm getting my HD channels from DirecTV (which will be the case) then HD-Ready is all I need. However, I'm wondering if I decide to buy an HD-DVD player down the road, will I also need to purchase a separate piece of equipment to use this with my TV? Any better explanations of what this HD-Ready means would help. Thanks.

Thanks for any help anyone can give.

-Ryan

Thanks guys...appreciate it. I'm actually probably gonna get one of the Olevia 26" now (assuming I can find the cash) these are HDTV's (with tuners). Also, I knew it was one of those that won out over the other. I swear I meant to say Blue-Ray