Nintendo NES Console "rf ch mean" Questions

rf switch to ch.4, if that doesn't help make sure that there is nothing connected to the in port on the rf switch and try it again, also make sure the connector of the rf switch has a straight pin and

correct but could it be my tv? also the "SEGA RF UNIT" has a switch for "I" or "G" im unsure what the options mean? I (u.k.) G for other countries CH 36 , turn off auto fine tune, and tune it manually