Hollywood Ten who went to prison for contempt of the United States Congress. His wife, Joan Scott writing as Joanne Court, attended story conferences and gave her husband notes so he could do rewrites. Filming The show's first studio was Stage One of KTTV in Los Angeles, California, with the production moving to Desilu in 1957. Franklin Canyon Reservoir and Vasquez Rocks saw location shootings. During the Timmy seasons, episodes were filmed at the Grand Canyon and in the High Sierra, and, during the Forest Service seasons, the Forest Service and the Department of the Interior offered Alaska, Puerto Rico, the Washington Monument and other sites for location shoots. Fifteen pages were filmed per day, six days a week, with three shows completed per week. Shooting in order was not possible. Several barn segments might be filmed at a particular time with the crew then moving on to film an equal number of kitchen scenes. The shots may have then been used in four or five different episodes. Rettig was allowed to bond with the dog and often groomed the dog at the studio or spent weekends at Weatherwax's home playing with the animal. The bond translated to film, making the boy and dog scenes more believable, but, eventually the dog developed divided loyalties (looking to Rettig for direction rather than Weatherwax) and the trainer was forced to curtail the amount of time boy and dog spent together. Typically, there were two dog trainers on the set, each teetering on a stepladder only Lassie could see and waving a chunk of meat at the dog. "It would look as though Lassie was looking at Jon (Provost), but he was really looking past Jon at the piece of beef", Lockhart recalled in 2004. When Provost delivered his line, the trainer behind Lockhart would whisper "Lassie!" and wave another piece of meat. Lassie's head would turn to Lockhart who would deliver her line. Then the trainer behind Provost would get Lassie's attention again, and Provost would deliver his next line. "The sound editor would cut out all that," Lockhart said, "You finally got to where you never heard the trainers. Often, if the scene had gone well, and maybe we hadn't gotten the dialogue quite right, if the dog was right, they'd print it." In addition to the main Lassie, three other Lassies might be involved in an episode shoot: a stand-in