If you're asking what I think you are asking (and to be honest it isn't that clear) then the aerial connects to the video using aN RCA connector and then you use a scart cable to connect the video to the TV.
RF = Radio Frequency = Ariel leads not SCART or Com Sin. You can use analogue RF to connect videos etc but as far as I know non of the devices transmit in digital and this means it is possible to clash between the two with out realizing. Less and less videos etc have this now and some things like freeview boxes allow you to turn it off. Old sky boxes are the worst as very old ones do not allow you to move the channel or switch off and are on same channel as channel 5 digital in this area.
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