Commercial
A commercial was a promotional medium used in television or radio to sell products or services, subsidizing the programming the audience was enjoying.

A commercial was once made advertising a number of different kinds of "Tribbles" cereals, though the context in which the commercial was made is uncertain. ()

Paid commercials were used by Empire TV on planet 892-IV in 2268, broadcast during highly popular programs such as Name the Winner. ()

Bang Bang Automatic Rifles advertised its products on a radio station on Sigma Iotia II in the same year. ()

A real estate commercial falsely advertised property on "beautiful Nimbus III" in 2287. ()

When B'Elanna Torres recreated a TV set for Tom Paris in 2376, she didn't understand the purpose of a jingle, a song designed to add appeal to a commercial. ()

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Communications technology