Some inputs on tvs won't process the color signal. Try one of the other inputs. Mine does the same. If u have already used the working ones on something else, U will need a switch to select one or the other available at Radio Shack if u can find one. If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10
Set-up (Programming) procedure is too much to type in here, and is not practical and it will differ brand-to-brand remote controls. If you wish to get more; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. One among it has general set-up codes to check with TVs and other devices are given, in the order of the 'device's brand name list' in alphabetical order. Pull up older posts. Search the sites by type in the brand name of your device in its search box at the right column of the display window. It will help you to find the details easily.
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How to Program a GE Universal Remote Control. Enter Setup Mode. Press and hold down the SETUP button on the remote until the red light on the remote turns on. Press the device type button. Enter the device code. Tests the results. Repeat this process for your other devices.
Use code search on your GE URC o find something that handles the Emerson functions. if a search through all codes stored in the URC fails, try a different one.