I have an old GE TV and it doesn't have input (L1/L2) on the TV remote or menu and only has a coaxial connection on the back. I bought a DVD/VHS player and ran the cable to that devices "IN" port and then ran another coax from the "Out" to the TV. I cannot get the DVD/VHS to show up on the TV. I have tried using channel 3 or 4. The DVD/VHS is a Samsung. Any ideas?