I have the 13 inch and...

I have the same problem, my tv will not allow me to change channels but will only let me add/delete the channel the tv is currently on

If you let it autoprogram and all you get is channel 103. Move the TV back to the old connection and see if it autoprograms all the channels there. If that works ok then you have a problem with the cabe line that only has channel 103.

I would recommend getting a universal remote control. They cost no more than ten bucks and you can program them to control the tv and the vcr. Just make sure that the brand of tv is listed on the back of the remote package.

I think you may need an RF Modulator. This device will have connections for the DVD and TV and will have a channel 3/4 switch. Good luck to you.

Some universal remotes will not program for combo devices using the TV code. You might try using the VCR code and see if it takes. Some operating functions might not work.

USER MANUAL

Viewing the user manual above, the only inputs are on the front of the unit. (1) video - yellow
and (1) Audio - White
You can watch the DVD, but it will only have MONO sound.
Connect component RCA cable RED YELLOW WHITE (minus red in your case) to the front of the unit.

To view from that source, Change the channel to 2 then hit the down arrow one more time to get in AUX mode.

The TV should be on channel 2, 3, or 4 to work correctly. There might be a small switch on the back of the VCR that lets you select the channel that it wil play back on.

Also, look on the remote control for the VCR and see if there is a button labeled TV/Video, and press that while something is playing. This switches back and forth between the TV signal and the VCR signal and it could solve your problem.

Pretty much a hoax on those diverter boxes. People ran out and bought them thinking that won't have reception. I have many years in maintenance and several years in nursing homes with different tv's in every room. Not once have I needed a box to pick up channels with or without cable. I myself get 16 channels with rabbit ears and thats enough for me. And I do own a combo as well and it has simple antenna and does me just fine. Depending on your location, the old tv antennas we use to put on our houses...they work amazing! Might be able to snag one on a freecycle or craigslist site. Good luck! :)

I’m happy to assist further over the phone at https://www.6ya.com/expert/shannon_b38635e8878032de

Use the channel switches and vhs switches to get the on screen tabs to work.....

ok! you can auto search the TV to find all Cable channels! but first you have to set mode TV /CABLE set to cable then you auto search!