DUBAI, United Arab Emirates — Hackers disrupted Iranian state television satellite transmissions to air footage supporting the country’s exiled crown prince and calling on security forces to not “point your weapons at the people,” online video showed early Monday, the latest disruption to follow nationwide protests in the country. The hacking comes as the death toll in a crackdown by authorities that smothered the demonstrations reached at least 3,941 people , activists said. They fear the