"Three's Company" Spit-roast?

Oliver, I just discovered that the father of Colby Kline is Richard Kline, the guy who played playboy Larry Dallas on Three's Company with John Ritter during the late 1970s/early 1980s. Did Richard Kline and John Ritter ever double-team you while singing the Three's Company theme song? Did Don Knotts ever show up and pleasure himself while watching? Please let me know soon!