If your using digital cable it will only record channel 3 or 4 depending on what your cable box is set to...In order for it to record different channels it needs a cable source plugged directly into it. You will only be able to record standard cable channels 1-125. If it's digital cable forget about... you can only record it with channel 3/4 a solution to this would be using a 2nd digital box.. "auto-programming" may be limited even with a 2nd cable box. If your only using standard cable 1-125... you can use the TV/VCR button it will switch between the tuner of the TV & VCR allowing you to record while you watch a different show... keep in mind this won't work for digital channels which if I'm not mistaken comcast has already converted all channels to digital even basic.
Try unplugging power to the unit for at least 10 minutes or more then plug it back in.. it should try to automatically setup everything. If not manually set the time first then make sure if it has a option to switch from ANT / CABLE that it's set to cable if you have it connected to a cable system. Now try auto scan/store channels.
The video heads are a large silver cylinder inside the machine.
I will warn you against using a cloth or anything to clean then as they have a small gap on them and if any dust gets in there it could make the problem a lot worse.
Your best bet is to search google or some where for a video head cleaning tape, they should be fairly cheap these days.
If that doesn't make much improvement then unfortunatly the head is probably going faulty which would need to be replaced by a audio visual engineer.
Regards
Mike
Sounds like the guideposts need realignment to center the tracking or something got bent in the tape jam removal, check the tape path!. Also could try a take apart cleaning of the head with a piece of paper and some alcohol.
Is the eject switch one of those plastic type that pushes against a push to make switch (see image below).
If it is you can melt the plastic with a soldering iron so it engages again.
Your best course of action is to contact CONSUMER DIRECT which you can access online or via telephone number 08454 04 05 06 Monday to Friday 0800 to 1830 and Sat 0900 to 1300, it's UK government funded so it shouldn't cost you anything apart from the phone call and nothing online.
Check the Input Source: Make sure you have selected the correct input source on your TV for the device you are using. Use the remote control to cycle through the input options until you find the one connected to your video source.
Check Video Connections: Ensure that all video cables (such as HDMI, component, or composite cables) are securely connected between your TV and the device you are trying to watch content from. A loose or faulty cable connection could result in a loss of video signal.
Restart the TV and Video Source: Try restarting both your TV and the device you are trying to watch content from. Power off both devices, wait a few moments, and then power them back on. This can sometimes resolve temporary glitches or issues with the video signal.
Check for Software Updates: Make sure your TV's firmware is up-to-date. Sometimes software updates can resolve compatibility issues or bugs that may be affecting video playback. Check the settings menu on your TV for an option to update the firmware, or visit the manufacturer's website for instructions on how to do so.
Reset Video Settings: If you've made any changes to your TV's video settings, such as resolution or picture mode, try resetting them to their default values. This can sometimes resolve issues with video playback.
Try a Different Device: If possible, try connecting a different device (such as a DVD player or gaming console) to your TV to see if the issue persists. This can help determine whether the problem lies with the TV itself or with the original device you were using.
Contact Panasonic Support: If none of the above steps resolve the issue, it's possible there may be a hardware problem with your TV. In this case, you may need to contact Panasonic customer support for further assistance or to schedule a repair.
Check the Power Cord: Ensure that the power cord is securely plugged into both the TV and the power outlet. Make sure there are no visible signs of damage to the power cord or the plug.
Inspect the Power Outlet: Try plugging another electronic device (such as a lamp or a phone charger) into the same outlet to verify if it is functioning properly. If other devices work fine, then the issue is likely not with the power outlet.
Check for Tripped Circuit Breakers: Check your circuit breaker or fuse box to see if a circuit breaker has been tripped or a fuse blown. If so, reset the circuit breaker or replace the fuse and try plugging in your TV again.
Test with Different Power Source: If possible, try plugging your TV into a different power source altogether, such as a different room or building. This will help determine if the issue is specific to the power source you were previously using.
Contact Panasonic Support: If none of the above steps resolve the issue and your TV still does not power on, it's likely that there is a hardware problem with the TV itself. In this case, you may need to contact Panasonic customer support for further assistance or to arrange for repairs. Be sure to provide them with details of the troubleshooting steps you've already taken.
Turn off and unplug the projector.
Locate the lamp cover on the projector.
Remove the lamp cover.
Take out the old lamp.
Insert the new lamp.
Replace the lamp cover.
Reset the lamp hours:
Press the Enter button to display the "Option" menu.
Use the 5 or 6 button to select "Lamp Runtime".
Press and hold the Enter button for approximately 3 seconds.
The "Lamp Runtime" will change to "Time Reset [Power Off]".
Turn off the power and disconnect the power cord.
Finally, plug in and turn on the projector.
Remember to consult your projector's operating instructions manual for specific details and safety precautions. How to change Panasonic vx 400 xga projector lamp change or replace (youtube.com)