JVC HD-61G787. How can I get this TV to pick up all my cable channels? I only get local as of now.. it's set to cable and is hooked up by HDMI cord and cable line... plzzz help me figure this out... thank you.

SOURCE: LG 42LB5DF Horizontal lines when first turning on

I got my main board replaced under warranty and this fixed the problem.

SOURCE: Sony 46" XBR2 Cannot turn off closed caption

With TV on, turn off DVR and hit menu on DVR remote - you can disable CC from there.  Worked for us - got the idea from another fixya post. 

SOURCE: Need help hooking up TV, BluRay, Home Theatre & cable box

I found that since the Panasonic TH50PZ80U TV has only 2 HDMI ports on the back of the TV, the best solution for me was to use component (red, blue, green) cables to connect the Home Theatre to the TV. I suppose I/you could connect the home theatre to the HDMI port on the front panel, but I don't want cables hanging out the front of the TV (personal preference). Unfortunately, I am no longer able to use the VIERA Link functionality available by connecting all Panasonic components to each other using HDMI cables, but I feel it's a small price to pay for the incredible picture quality acheived by using the HDMI cable to connect the HD Cable Box to the TV. I may yet be able to control everything using the HD Cable Box remote, but I haven't gotten that far yet but I've got Comcast coming on Saturday and hopefully they can let me know if this is possible: let me know if you have a solution.

So here are the components and the cable types used to connect:

1. HD Cable Box to TV: HDMI cable & Optical Audio cable
2. Home Theatre to TV: Red, Blue & Green component cables
3. BluRay Player to TV: HDMI cable

SOURCE: No sound on NON HD channels

I had the exact same problem on a brand new Insignia 26 " LCD with DVD. Comcast tech was able to fix it by changing the Comcast box diagnostics. Here is what he did. Using the Comcast remote with the TV on - press power, cable, menu in that order. A comcast diagnostic srceen will appear. Select Additional HDMI options, then audio options. Change the audio options to L-PCM. Press power again to exit the diagnostics. That will fix it and you get to use the HDMI cable.

SOURCE: Green Line in Philips 42TA648BX/37 42" LCD

Just a guess. Try to get hold of a different cable box & see if you have the same problem. If so, problem is with cable box.