An ornament on Mike & Zian's tree has the number "50" prominent displayed. The time span of this movie is 50 years with one story taking place in 1973 and the last story taking place in 2023.
Hallmark ornaments were introduced in 1973. The ornament given to Lizzie is a genuine 1973 ornament in the original box and in mint condition. The 2023 tree has a genuine 2023 50th anniversary ornament on the tree (red with the number 50).
Catherine Bell and James Denton worked together on The Good Witch