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
International Gilbert and Sullivan Festival seen. There is also a G&S memorabilia fair, providing a chance for collectors and gift hunters to buy and sell G&S recordings, DVDs, books, scores, figurines and other items of interest. Fringe events also include recitals, concerts, lectures and productions of lesser-known works by Gilbert without Sullivan, Sullivan without Gilbert, works that played as companion pieces with the Gilbert and Sullivan operas during their original productions and other Victorian and Edwardian works. The Festival serves as a "lightning-rod" of G&S activity worldwide. G&S performers and audiences from one part of the world can see performances by groups from other parts