In heraldry, argent is the tincture of silver, and belongs to the class of light tinctures, called "metals". It is very frequently depicted as white and usually considered interchangeable with it. In engravings and line drawings, regions to be tinctured argent are either left blank or indicated with the abbreviation ar. in them.

The name derives from Latin argentum, which derives from the Greek 'Αργυρος, translated as silver or white metal. The word argent had the same meaning in Old French blazon, from which it passed into the English language.

In some historical depictions of coats of arms, a kind of silver leaf was applied to those parts of the device that were argent. Over time, the silver content of these depictions has tarnished and darkened. As a result, it can sometimes be difficult to distinguish regions that were intended as argent from those that were sable. The result is a false impression that the rule of tincture has been violated in cases where argent, applied next to a dark colour, now appears to be sable next to a dark colour from tarnishing.

A television channel is a physical or virtual channel over which a television station or television network is distributed. For example, in North America, "channel 2" refers to the broadcast or cable band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video (VSB) and 59.75 MHz for analog audio (FM), or 55.31 MHz for digital ATSC (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider.

Depending on the multinational bandplan for a given region, analog television channels are typically 6, 7, or 8 MHz in bandwidth, and therefore television channel frequencies vary as well. Channel numbering is also different. Digital television channels are the same for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchannels. On satellites, each transponder normally carries one channel, however small, independent channels can be used on each transponder, with some loss of bandwidth due to the need for guard bands between unrelated transmissions. ISDB, used in Japan and Brazil, has a similar segmented mode.

Channel, Channels, and similar terms may refer to: