On the date in San Diego: June 1992 was also the month where KPBS Channel 15 celebrated its 25th Anniversary for June 25th, 1992 since it first went on the air on June 25th, 1967!!
Might be the premiere, but it's not the pilot. Peter Allen hosted the pilot and was slated to host the series but he became too ill with AIDS related throat cancer to do the series, he actually died the same day the show debuted.