After the FETCHers finished filming the challenges, contestants acted in-studio, with the voice of Ruff. Jim Conroy traveled to Boston from New York for the two weeks they spent shooting in the studio. The fourth camera simply captured Conroy doing his lines as Ruff in the audio booth. The kids heard him in the studio and he heard their reactions in his headphones. Ruff's lines were the only lines that were scripted out, though he would sometimes ad-lib an answer to a question or comment from a FETCHer. Once the lines were recorded, the show went into editing, where the challenges were sorted into the show order.