I don't know if this approaches Brechtian technique or not, but ...
 
 When MOONLIGHTING was in its ascendancy, one of its victims was the
 crime drama, RIPTIDE, about 3 private investigators.  RIPTIDE ran an epi-
 sode titled "If you can't beat em," in which the PIs are hired as technical
 consultants to a tv show that was an obvious parody of MOONLIGHTING.  In
 the course of the episode, the Riptide PIs take the actors from the show on
 a case, and point out the types of errors TV PIs make (like convoluted ded-
 uctions on virtually no evidence)--and after they point out each error, the
 regulars   look at each other and clips from previous RIPTIDE episodes show
 them doing the same thing.