Maybe a pod about sports or something not too serious. Wouldn't want them to blow too many minds.

We have a tradition of opening our presents on Christmas eve so the kids can face time with my wife's family for the gifts they sent. So we clean out under our tree first and then go to my parents for Christmas dinner on Christmas day and clean out under their tree beforehand.

My daughter isn't really into the Santa thing. Probably because she has a brother who is 8 years older than her and maybe aside from her first Christmas he is a non believer. However when my son was young we had to make up convoluted stories about Santa only being able to drop presents off at Grandma and Grandpa's house so that's why all your presents on Christmas eve are from family but everything you get on Christmas day is from Santa. Haha, glad we don't have to do that again.