Can not get the listings for the TV Guide to load. The TV is connected to cable box and tuner with HDMI cables. When I contacted LG they stated that I need to split the cable signal prior to connecting to the cable box. One co-ax directly to the TV and the other to the cable box. This is because the TV Guide information will not download via an HDMI cable. Any thoughts?

You need to look up the codes for the manufacturers of the various tv's that work with the cable box. The codes should be listed in Help/Settings on the cable box itself. If you cannot find the setting contact the cable box operator for instructions..

If your Sony Blu-Ray player and LG TV are recent models, each should have an HDMI cable connection. HDMI is an method to connect your digital video and audio devices with just a single combined cable. In the case of your LG TV, using an HDMI cable will allow you to send the HD video signal to your TV's screen, and allow you to hear the sound through the TV's speakers.
Your LG TV may have multiple HDMI connectors, to allow other devices to send signals to your TV, such as a cable box or satellite box or digital video recorder (DVR). Your Sony Blu-Ray player will usually have just a single HDMI connector.
Purchase an HDMI cable from your local electronics store. There are different versions of the HDMI specification, and you should get a cable that you can verify is certified for the HDMI version 1.4 specification.
Plug one end of the HDMI cable into the Blu-Ray player, and the other end into one of the HDMI connectors on the TV, noting which one you selected.
When you turn on your Sony Blu-Ray and your LG TV, you should use the remote for the LG TV to select the input source. Your LG remote should allow you to select the HDMI input connector you used, at which point you should see the display of a DVD playing on the Blu-Ray player. If you cannot hear the sound, use the LG remote to increase the TV volume.

The VCR portion is connected to yhe TV via yellow-end cable(video) from "video out" to TVs "video in" and red and white-end cables(audio) from "audio out" to TVs "audio in". The DVD plays via HDMI cable from "HDMI out" to TVs HDMI in. S-video cable can be used if no HDMI terminal is available on TV. External tuner in (cable TV, Satellite) is connected to the video and audio in terminals or better yet if S-video out is available on the tuner box.

No because it is a monitor only; meaning it does not have a TV tuner of its own.

ok a bit confused, Tuner ? like amplifier or Tv Tuner ? regardless seems like a easy fix .

First your cable box as 3 cables:1st . Power cable to outlet
2nd. From the wall ( usually a Coaxial cable coming from outside box ) into cable box.3rd. HDMI or Second coaxial cable ( One of these usually goes to the back or side of your Tv depending where inputs are located.)
Now Dvd has 2 cables 1st to Power2nd. To TV ( Hdmi or Coaxial )
On the back of your Tv will have 2-3 HDMI inputs . Assign 1HDMI jack to each media your trying to use.In this case TV HDMI 1, HDMI 2 DVD.
Assigning HDMI's will now reflect on your TV menu selection. Choosing HDMi 1 or HDMI2 from Tv menu will allow you use or view desired Media option in this case DVD or TV.
Now if there is Amplifier / Tuner involved like to connect surround sound to, connection may be a bit trickier however same principal.Plug all media into HDMI 1, HDMI 2, respectively,this time to the back of the tuner NOT to back of TV.Once you have done that You will need a third HDMI cable now from the back of the Tuner ( output Jack, usually has lighter color markings indicating Output HDMI) to your HDMI 1 jack in the back of your TV. Now you have bridge TV/ Cable , DVD into Receiver / Tuner and Selecting media will now be done not through TV Menu as before but through Tuner / Receiver menu or selection.
Good luck .

Good Luck

Have you tried using component cables instead. One of my Time Warner cable boxes did the same thing using HDMI.

you are trying to use a monitor as a tv, you will need a tuner to get a pic, use a cable box or digital to analog tuner to get something

The first thing you need is the HD tuner. Since you stated that you changed the cable box I will assume that means it's HD ready.
So you have HD signal coming in to the cable box box by-way of a coaxial cable. Now you need to get that HD signal to the monitor. For this connection the standard coaxial cable normally used between the TV and cable box will not do the job. How many connection options you have depends entirely on the what is available on the monitor.
Normally there are three choices. Your monitor could have anyone of these, a combination of them or none if it's not HD ready.
They are Component cable, HDMI and DVI.
Component is a combination of three RCA type (red, blue, and green), connectors. Simply connect the "Component Out" from the cable box to the "Component In" on the monitor.
HDMI cable looks similar to a computer monitor cable but bigger. Same goes for this one. Connect the "HDMI Out" from the cable box to the "HDMI In" on the monitor.
An indirect connection can also be made if your monitor has a "DVI In" jack by using a cable that will allow you to come from the "Out" connection of either the HDMI or Component on the cable box to the "DVI In" on the monitor.
If you are unclear about anything or you have any other questions please just ask and I'll try and help out.

if the Comcast cable box has an HDMI output, it should connect directly to one of the TV HDMI inputs. Then connect the LG DVD unit HDMI output to the second HDMI input of the TV. Use two HDMI cables. Do not buy the expensive Monster HDMI cables. If you have already done so, I recommend you take it back for a refund, then buy the low cost HDMI cables which will work just as good and then you can bank the savings toward a new Porsche Boxter!! Now we have the video connected from both the cable box and the LG system.

Now--what do you do if the cable box does not have an HDMI output--just use its component output and your component cable (red, blue and green) to connect to the TV component input. This will still get the video to the TV and good HD pictures. Hum--do you have an HD cable box? You did not say and I just assumed that you did since you got the HDTV. If not, let me know with a follow up question and I will assist in that area further.

Now for the audio connections--The DVD player will not need any connections since it in the LG unit. The sound will come out the speakers when you start playing the DVD. The cable box is where we get the TV audio to feed the LG unit. If the cable box has an optical output, use an optical cable (again the low cost one)and connect to the optical input on the LG.
This will get the TV audio to the surround system. If no optical output, use the red and white (left/right) audio connections and connect to one of the two the LG audio inputs. To hear TV audio on the LG speakers, just switch to that input or the input associated with the optical input.

To watch DVDs, switch the TV to the HDMI input to which you connected the LG unit. For TV, go to the other HDMI input (or component input).
Switch the LG to the audio input to which you connected the cable box to get TV sound.

Hope this gives you food for thought. If so, and you have more questions, just come back in with a follow up.

Don't worry about sending the TV audio to the Panasonic. Just send a digital audio signal from the cable box to the Panasonic.

DVD - Panasonic connected via HDMI
TV - Panasonic connected via HDI
cable connected to cable box and TV. But you will not really be using the cable connection to the TV (TV Tuner) since you will want HD feed from cable box through HDMI input on TV.

You aren't concerned about feeding the TV speakers because your audio will always come from the home theatre.

Note that some components don't feed audio through HDMI, in which case you will need to use optical digital audio.