| 摘要 |
<p>Each of a plurality of households includes a channel substitution unit (110) which receives a normal spectrum of television channel signals and at least one substitute channel signal. The substitution unit of each household (108), upon command from a control arrangement (118), replaces a channel of the normal television channel spectrum with the substitute channel and distributes the resulting spectrum, comprising the original normal spectrum of television channel signals with one substituted channel, over a distribution medium such as an in-house distribution cable (112).</p> |
