From the early days of TV and radio, this is a type of commercial where the action stops and the show's characters just talk about the sponsor. Sister trope to EnforcedPlug, where the characters try to work the shill into the story itself.

NotToBeConfusedWith CreatorsPet. Or even TheShill, really. Or CharacterShilling.
!!And Now A Word From Our Examples:

* A documentary on Superman shows a commercial spot from ''TheAdventuresOfSuperman'', with Clark and Jimmy enjoying a very sugary breakfast cereal together.
* ''TheFlintstones'' and ''ILoveLucy'' both had in-character ads for cigarettes.
* Parodied on ''TheSimpsons'', with John F Kennedy and Richard Nixon pausing in the midst of their debate to plug Duff Beer.
-->'''Nixon:''' Well I would suggest, Mr. Vancouver, that if you knew the President that, that was just a facetious remark.
-->'''Announcer:''' And now a word from our sponsor.
-->'''Kennedy:''' I would like to take this opportunity to announce my fondness for, ah, Duff Beer. (audience cheers)
-->'''Nixon:''' I'd also like to express, er, my fondness for that particular beer. (audience grumbles)
* The George Burns and Gracie Allen television show would feature segments with Harry Vonzelle(?) wandering around supermarkets and discussing Carnation Evaporated Milk.
* ''[[Series/ThirtyRock 30 Rock]]'' tends to turn ProductPlacement into this for the sake of humor.
* ''Radio/{{Dragnet}}'' featured breaks with Jack Webb (the actor who played Joe Friday) advertising for Fatima Cigarettes.
* Mercilessly mocked in ''[[AttackOfTheKillerTomatoes Return of the Killer Tomatoes!]]'', where the director claimed to run out of money halfway through the movie, prompting the cast to blatantly plug various products and companies until one guy gets sick of it and asks "Do we have enough money to finish this turkey yet?"
* In the film ''The Truman Show'', as there are no commercials on the show, advertising is done purely through product placement, mainly handled by the actress playing Truman's wife.
* Parodied in ''ItalianSpiderman'' when our hero (who's already chainsmoking his way through the entire film anyway) takes time out to do nothing except really enjoy a fictional Il Gallo brand cigarette and reflect on how good it is for a while.
* Commercials for ''TheAndyGriffithShow'' included the show characters, in character, and often within the plotline of the episode itself, [[EnforcedPlug plugging]] the sponsor's product -- and not always in ways that fit the show's continuity. For example, Andy might shuck an ear of corn to reveal [[ Post Toasties]]...or even more surreal, Barney might [[ put one over on Andy]].