Switch to antenna mode without a remote

Can you access the menu on the front of the tv? Is so go into the menu setup and switch from cable to air then run the autoprogram to search your channels. If you cannot access the menu on the front of the tv then a remote will be required . Also if if your tv has audio/video jacks in the back of the set and you are not using them hook it up with those inputs for a better picture . Your have to push the input button to select that a/v input you used . Good luck