This show was interesting because actors and actresses from other BBC shows such as Young Dracula for example. It's normally silly, boring and hard to watch. However after multiple seasons and episodes the biggest incident that happened destroyed the series completely.
In the highly criticised episode they did a civil partnership between two men and afterwards the show quickly disappeared from TV. So Marrying Mom and Dad basically became Marrying Dad and Dad which was a big no no at the time. The BBC quickly decided to do different live action shows and the show fell in the bin of badly done shows.