Gilbert and Sullivan of these recordings have been reissued on CD. After the company was revived in 1988, it recorded seven of the operas. After the copyrights on the operas expired, numerous companies around the world released popular audio and video recordings of the operas. In 1966 and again in the 1980s, BBC Radio presented complete cycles of the thirteen extant Gilbert and Sullivan operas, with dialogue. Ad hoc casts of operatic singers conducted by Sir Malcolm Sargent in the 1950s and 60s and Sir Charles Mackerras in the 1990s have made audio sets of several Savoy operas, and in the 1980s Alexander
Gilbert and Sullivan and The Two Ronnies' 1973 Christmas Special. Other comedians have used Gilbert and Sullivan songs as a key part of their routines, including Hinge and Bracket, Anna Russell, and the "HMS Yakko" episode of the animated TV series "Animaniacs". Songs from Gilbert and Sullivan are often pastiched in advertising, and elaborate advertising parodies have been published, as have the likenesses of various Gilbert and Sullivan performers throughout the decades. Gilbert and Sullivan comic operas are commonly referenced in literature, film and television in various ways that include extensive use of Sullivan's music or where action occurs during a performance of