Turn-On (Lost Episodes of Comedy Series; 1969)
On February 5, 1969, ABC premiered a television pilot called Turn-On. The Cast included Teresa Graves, Hamilton Camp, Mel Stewart, and guest host Chuck McCann. Many people across America complained about the show and it's sexual and religious content. Co-creator of the show Ed Friendly decided to respond to the complaints by interrupting the live broadcast of the show and stating that "the remainder of this program will not be seen this evening, or ever". The screen then cut to black and the show was never broadcast again.
Eventually, many would forget the pilot, until one day in the 1980s, when ABC News aired a news report featuring footage from the show and subsequently revealed that a second episode of Turn-On had been recorded, though not broadcast. Many years later, the news report found its way to the internet. Also, according to The Monkees: The Day-By-Day Story of the 60s TV Pop Sensation by Andrew Sandoval, it is mentioned that The Monkees made an unaired appearance on an episode of Turn-On citing its possible air date & day of filming revealing that there have been more episodes of Turn-On that have been filmed. It is possible to view the first two episodes at The Paley Center for Media in New York City, though it is currently unknown if anyone other than The Paley Center are in possession of copies of said elusive episodes, or the possible other episodes of Turn-On that could have been filmed.