Just a minute... just a minute. Now, hold on, Mr. Potter! (in fairness to you, the OP asked for opinions on overrated Christmas movies)I don't understand people's love for this movie. When it was released in 1946, it was soundly panned for being too sappy, and was a box office flop. It was Capra's first movie since returning from the war, and put his career on shaky ground.
For me it's Jimmy Stewart, Donna Reed (a babe even for a youngster like me at 68) and the story and message of the movie. Just find my self hooked in every year. Guess I like sappy every once in awhile.
Interesting background that I wasn't aware of and funny, I don't think I ever saw it until I was in my mid to late 20's but boy do I remember the 3 channel days .... "the President is on!"
Speaking of old school TV and given it's Christmas eve, who remembers waiting for Santa to show up on Woody Assaf's "weather radar"? That was some high tech stuff and graphics.