@hallmarkchristmassecrets on Instagram: "🎄🎬🎞️🎅It’s hard to believe the biggest Christmas movie maker in history started with… greeting cards. 🎄✨ Hallmark (originally “Hall Brothers”) released their first Christmas cards in 1915, just one year after they began printing their own line of holiday cards. Their leap into entertainment began on December 24, 1951 at 9:30 PM, when they sponsored Amahl and the Night Visitors — the first opera ever written specifically for television. That Christmas