NTSC, PAL and SECAM wasn't a case of intentional geolocking, those were simply different signal standards used in different parts of the world. NTSC had differe

NTSC, PAL and SECAM wasn't a case of intentional geolocking, those were simply different signal standards used in different parts of the world. NTSC had different frequency from PAL/SECAM because the signal was synchronized to the power grid; SECAM was different from PAL because the French being French had to make it their own way (and then communist-affiliated countries adopted it).