Originally Posted by johnny bb
I just got a Polaroid 42 inch lcd, model number TLX-04244 1080 p. Is this the one that you guys got?
It's not the same, but it's close enough to answer your questions. In fact, the answers to your questions don't depend on which LCD HDTV you have.
Originally Posted by johnny bb
I screwed in the cable line, plugged the TV in and realized the picture is really grainy. What do I do now? Whats this HDMI thing? Please help. This is my first LCD and I am VERY disappointed. I was expecting a much better picture. Is there something I am doing wrong? Do I need to program anything? I did program the channels, but dang, the picture sucks. Also, I cant program my cable remote to use with this tv. I cant find any codes. I looked at this whole thread. Any help would be appreciated!
First, slow down. Take a deep breath. It's going to be OK. You are going to love the picture when you get it working. There's not that much you have to do, but you do need to learn a little bit about HDTV and picture formats (such as 1080i and 1080p). I can't teach you all that you need to know here, but elsewhere on AVSFORUM you will find everything you need to read to learn the minimum that you need to know.
Your experience is typical. HDTVs simply shouldn't -- or typically aren't -- plugged into a cable TV system's cable "raw" (as apparently you did). In many cases (I don't know about Cox) there simply aren't going to be any HD channels available for the ATSC tuner in the TV to find on the raw (RF) cable. Most of the time you will have to have a STB (set top box ... i.e., a "cable box") that is capable of picking up the (usually) digitally-encoded HD channels and passing them onto your TV (usually via an HDMI cable or a set of component cables). It may, in fact, be the case that there are some HD channels being sent out by Cox on the RF cable, unscrambled, that your TV can "tune." But they are likely not to be the HD channels you want to watch in the first place (such channels are most likely to be your local TV stations).
In short, you want to get a cable box and pay Cox for its digital channel lineup, and then also pay Cox extra for their "HD service" (whatever they call it). Then your cable box can select the HD channels offered and send them to your TV. But you have to hook the cable box up to your TV the right way in order to get HD (1080i as it turns out) video sent to it in the first place. You have two choices: component cables or an HDMI cable. For ordinary cable TV (which does not have the quality of a Blu-Ray disc), component cables (which consists of three [or five with audio] separate cables) will be just fine, but a set is just as expensive as a single HDMI cable and you only need the one HDMI cable (assuming your Cox STB has an HDMI output in the first place -- if not, you will have to use component cables). You should now understand that you don't hook your TV up to the STB via the ordinary RF cable that you apparently thought you could. (You can, but you're not going to get what you bought the TV for.)
The technical details can get thick from this point on, so I will not go there, now. If you still don't understand, respond and I (or others) will try to help. But you simply need to get a Cox STB with whatever extra cost options they have to offer digital and HD service, and connect the STB to your new TV with a set of component cables or a single HDMI cable. Once you have done that, you need to configure the STB to send an HD signal (which will be 1080i, I suspect) to your TV, and you need to configure the TV to display that signal in the proper aspect ratio.
When you have done all that, the picture will look like those demos in the stores (provided you have the STB tuned to a good HD channel, such as Discovery HD Theatre).
That "HDMI thing" is just a single cable that carries a digital TV signal (with audio) from a source (such as a Blu-Ray disc player or your cable system's STB) to the TV. It's better than component cables in some ways, no more expensive (I suggest monoprice.com if you are going to buy online) than a good set of component cables, and simpler to keep straight and hook up. When you get a Blu-Ray disc player, you will hook it up to your TV via an HDMI cable (or you should, anyway). Just get two HDMI cables now, use one for the new STB you're going to get and save the other one for later when you get a Blu-Ray disc player.
I don't have any clue what the remote code is for that particular model, but I found mine by using the remote's "search" function, which yours should have as well (don't they all?). It took about a minute to do so, but I'm pretty fast with my fingers and was able to stop the button pressing when the TV went off. It's probably similar or identical to the one I posted just above in this thread (read back a few posts to see that), but if it's not identical, you will have to search for it like everybody else probably did.