No, it wasn't an in-house joke. "Zork" wandered the streets of L.A. giving away cash. And, according to PD Charlie Van Dyke,The original seven-minute promo for KHJ's "Zork" in January of 1977 would have to make the list:

There are seven people but only six listed.No, it wasn't an in-house joke. "Zork" wandered the streets of L.A. giving away cash. And, according to PD Charlie Van Dyke,
"When it was time for him to leave, ZORK boarded a private Lear jet (remember, this IS RKO we’re talking about) and the KHJ crew gathered at the airport for his departure."
(L-R: Mark Elliott, Charlie Van Dyke, John Leader, Zork, Shana and J.B. Stone)
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You’re right. The third one is Bobby Ocean (in the light-colored three-piece suit). Sorry I goofed!There are seven people but only six listed.