HDMI lost.. How do I get these channels back?

you have to go to settings on you tv and make sure that it is going to the right hdmi outlet.

Have you tried a different HDMI input? (If available.) You may be able to test the cable box of PS4 using component cables to confirm that all but the HDMI is not working. You may try pushing or holding the HDMI cables to see if you can make the problem better or worse to identify a possible flakey HDMI socket.

If using cable you may be able to route signal to rear audio and video inputs--doubt a vcr will help.

disconnect power from set and or a box if used--wait several minutes and power up again--HDMI can cause issues and does not like connections being made if units are on.

Ur tv some how causes HDMI 1 and 2 port hubs link together so changes back and fourth 1 or 2 HDMI hubs will not a difference.Ur tv have 4 HDMI hub ports wright?Tries not to used HDMI hub ports as like HDMI ports like 1,2,3,4 to as in sequences.Tries used like 1 and 4,2 and 4,3 and 1 as skips sequences might work for ur tv.Tries to hook up the PS3 system as the old format hook up same hook as PS2 format like used the PS station old RCA AV cable hook up.Then that should not causes conflict at all because now tv have two difference kind of format hook up.

If you are using a HDMI connection, often the connection will be lost between your xbox and your tv. In my case I simply change to another channel or the other HDMI channel and then back and the secure HDMI connection will be restored.

1. Connect PS3 to your TV
2. Select the Correct HDMI input on your TV
3. Press and hold the [power] button on the PS3
4. perform setup.

These are the steps to setup the video output for the PS3, It is possible that it is set to a resolution that your TV does not support.

If this doesn't work, you may want to contact Sanyo to ask if they have some protection circuit for the HDMI input. Some manufactures TV's will deactivate(turn OFF) the HDMI input under certain conditions. Unplugging the TV or some other procedure usually turns it back ON.

change the sound output to HDMI? does the sound work on just like a normal tv channel?

When you have the ps3 hooked up through av cables on crt tv not hdmi. Continue to hold power until the console beeps again and this will reset which audio video output resolution back down so it can be seen and heard. Hope this helpes.

I don't know where you're located but you may want to double check with Time Warner on the availibilty of an HD box. I have TWC with an HD tier package and have an HDMI out on the box that runs directly into HDMI on this TV. Hope that helps!