17. A receiver comprising means for receiving an information signal from a transfer medium, which information signal comprises main data and sub data, the sub data comprising coded text lines having a plurality of character codes, the receiver being provided with a character display unit for displaying characters corresponding to the character codes in the code text line, wherein the display unit has at least one line with a number of character positions, which number is less than the number of character codes in the coded text lines, the receiver being provided with display control means for controlling the display of characters corresponding in dependence on control codes included in the coded text line so that characters associated with a selected number of the character codes are displayed at the number of character positions of the at least one line.
21. The receiver as claimed in any one of the claim 17 , wherein the display control means are provided with means for exclusively displaying groups of characters marked by marking codes included in the coded text lines.