The characters and {HEAD ~ graphics} from {TAIL ~ a teletext/data transmission decoder} are synthetically combined with the portions of the images of the video signals for blank zones of the screen by the synthesizing circuit 
The characters and { HEAD ~ graphics } from { TAIL ~ a teletext / data transmission decoder } are synthetically combined with the portions of the images of the video signals for blank zones of the screen by the synthesizing circuit
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH