I noticed this as well. After reading Mark Cushman's excellent book "These are the Voyages: Season One" about the production of Star Trek, I decided to look at Mission: Impossible. One of the clear and constant issues with Star Trek, Mission, and Desilu was budgetary constraints. Neither Geller, nor Roddenberry were as strict with spending as Desilu's board of directors wanted them to be.
The marque is an inside joke. Herb Solow allowed the shows to spend. Geller and Roddenberry spent. And Lucy and the board prayed that they would get enough money to stay afloat.
By the middle of 1967 (July 28th) Desilu was no more as Gulf & Western took over it, and neighbor Paramount. Star Trek and Mission had broke the bank...but Paramount would reap huge rewards.
The marque is an inside joke. Herb Solow allowed the shows to spend. Geller and Roddenberry spent. And Lucy and the board prayed that they would get enough money to stay afloat.
By the middle of 1967 (July 28th) Desilu was no more as Gulf & Western took over it, and neighbor Paramount. Star Trek and Mission had broke the bank...but Paramount would reap huge rewards.