Hookster1021 :
Ok thanks. My mom had a rca that was 720p, but displayed in 420i. She didn't use her box so I guess it didn't have the built in tuner right? So what about my xbox? Do I need a HDMI cable to show every thing the smart tv can do with quality or will the normal red yellow and white do the trick?
For xbox, you will need either HDMI or one of these
cables. HDMI cables have gone down in price quite a bit. You shouldn't spend more than $10 on one. I actually got a few from newegg for
free after a rebate. Something like
this $5 cable should do just fine. Or, any of
these are fine, just don't overpay. There is no special HDMI cable for the 360. They are all identical. Also, one isn't better than the other. There are different
versions such as 1.0, 1.4 and 2.0, but as far as quality of picture from one brand to another they are all the same. This is because a digital signal either works or it doesn't; there is no clear or fuzzy. You should be fine as long as it is at least version 1.4.