A user seeks to recall a TV program where a presenter measured weight differences at ground level and atop a tall building, possibly the Empire State Building. The discussion shifts to methods for measuring gravitational changes, comparing pendulum timing to using a scale, with participants debating the precision required for accurate measurements. Calculations suggest that the weight difference for a 1kg mass at a height of 300m would be approximately 0.1g, emphasizing the importance of unit consistency in calculations. The conversation highlights the feasibility of detecting small weight changes with affordable scales, suggesting practical experimentation. Overall, the thread combines nostalgia for educational programs with a technical exploration of gravitational measurement methods.